{
    "0": {
        "id": "mit_dorm_mcc_flr1_dorm_mcc_flr1_oct_31_2012_scan1_erika",
        "video": "sun3d_0.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. water fountain botanical garden bronze statue",
                "B. glass window mural fireplace",
                "C. fountain wall painting chimney",
                "D. frozen lake abstract painting wood stove"
            ],
            "correct_answer": [
                "glass window",
                "mural",
                "fireplace"
            ],
            "correct_order": [
                "glass window",
                "mural",
                "fireplace"
            ],
            "answer": "B"
        }
    },
    "1": {
        "id": "mit_dorm_mcc_wflr7_dorm_mcc_wflr7_oct_31_2012_scan1_erika",
        "video": "sun3d_1.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. magnetic board picture room washer room storage cooking area settee desk",
                "B. mailbox gallery room washing room wardrobe dining room couch desk",
                "C. bulletin board pictorial room laundry room cupboard kitchen sofa table",
                "D. notification panel illustration space washing area cabinet cookhouse couch desk"
            ],
            "correct_answer": [
                "bulletin board",
                "pictorial room",
                "laundry room",
                "cupboard",
                "kitchen",
                "sofa",
                "table"
            ],
            "correct_order": [
                "bulletin board",
                "pictorial room",
                "laundry room",
                "cupboard",
                "kitchen",
                "sofa",
                "table"
            ],
            "answer": "C"
        }
    },
    "2": {
        "id": "mit_dorm_mcc_wph_dorm_mcc_wph_oct_31_2012_scan1_erika",
        "video": "sun3d_2.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. rectangular couch game room backyard game room backyard",
                "B. round table study room bathroom study room bathroom",
                "C. oval desk game room closet game room closet",
                "D. rectangular shelf library corner lavatory reading area restroom"
            ],
            "correct_answer": [
                "round table",
                "study room",
                "bathroom",
                "study room",
                "bathroom"
            ],
            "correct_order": [
                "round table",
                "study room",
                "bathroom",
                "study room",
                "bathroom"
            ],
            "answer": "B"
        }
    },
    "3": {
        "id": "mit_dorm_next_sj_dorm_next_sj_oct_30_2012_scan1_erika",
        "video": "sun3d_3.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. mirror curtain plant",
                "B. desk window bookcase",
                "C. chair curtain cabinet",
                "D. couch painting plant"
            ],
            "correct_answer": [
                "desk",
                "window",
                "bookcase"
            ],
            "correct_order": [
                "desk",
                "window",
                "bookcase"
            ],
            "answer": "B"
        }
    },
    "4": {
        "id": "mit_dorm_sh_basement_dorm_sh_basement_oct_28_2012_scan1_erika",
        "video": "sun3d_4.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. workbench stairwell red wall",
                "B. kitchen counter attic doorway blue ceiling",
                "C. chandelier elevator blue carpet",
                "D. coffee table fire escape green ceiling"
            ],
            "correct_answer": [
                "workbench",
                "stairwell",
                "red wall"
            ],
            "correct_order": [
                "workbench",
                "stairwell",
                "red wall"
            ],
            "answer": "A"
        }
    },
    "5": {
        "id": "mit_gym_tohoku_gym_tohoku_oct_28_2012_scan1_erika",
        "video": "sun3d_5.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. bulletin board",
                "B. coffee table",
                "C. post-it note"
            ],
            "correct_answer": [
                "bulletin board"
            ],
            "correct_order": [
                "bulletin board"
            ],
            "answer": "A"
        }
    },
    "7": {
        "id": "mit_gym_z_squash_gym_z_squash_scan1_oct_26_2012_erika",
        "video": "sun3d_7.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. trash can",
                "B. water fountain",
                "C. park bench"
            ],
            "correct_answer": [
                "trash can"
            ],
            "correct_order": [
                "trash can"
            ],
            "answer": "A"
        }
    },
    "9": {
        "id": "mit_lab_hj_lab_hj_hall5_nov_2_2012_scan1_erika",
        "video": "sun3d_9.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. metal gate green floor center corridor",
                "B. metal gate blue ceiling left corridor",
                "C. glass door red wall right aisle",
                "D. wooden bench green floor left window"
            ],
            "correct_answer": [
                "glass door",
                "red wall",
                "right aisle"
            ],
            "correct_order": [
                "glass door",
                "red wall",
                "right aisle"
            ],
            "answer": "C"
        }
    },
    "12": {
        "id": "mit_ne47_2conf_ne47_floor2_conf_room",
        "video": "sun3d_12.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. whiteboard",
                "B. chalkboard",
                "C. chalkboard projector flipchart"
            ],
            "correct_answer": [
                "whiteboard"
            ],
            "correct_order": [
                "whiteboard"
            ],
            "answer": "A"
        }
    },
    "13": {
        "id": "mit_ne47_2corridor_ne47_floor2_corridor",
        "video": "sun3d_13.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. whiteboard bulletin board",
                "B. chalkboard notice board",
                "C. erasable board announcement board",
                "D. chalkboard leader board"
            ],
            "correct_answer": [
                "whiteboard",
                "bulletin board"
            ],
            "correct_order": [
                "whiteboard",
                "bulletin board"
            ],
            "answer": "A"
        }
    },
    "14": {
        "id": "mit_ne47_huge_office_ne47_floor2_office_4",
        "video": "__Volumes_wpr_sun3d_sun3d_data_mit_ne47_huge_office_ne47_floor2_office_4.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. fireplace floor lamp.",
                "B. hanging plant end table",
                "C. mailbox fire hydrant",
                "D. bookshelf bulletin board"
            ],
            "correct_answer": [
                "bookshelf",
                "bulletin board"
            ],
            "correct_order": [
                "bookshelf",
                "bulletin board"
            ],
            "answer": "D"
        }
    },
    "15": {
        "id": "mit_w16_kresge_back",
        "video": "sun3d_15.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. red screen",
                "B. blue sky",
                "C. blue house"
            ],
            "correct_answer": [
                "red screen"
            ],
            "correct_order": [
                "red screen"
            ],
            "answer": "A"
        }
    },
    "17": {
        "id": "mit_w20_flr4_sc_flr4_oct_29_2012_scan1_erika",
        "video": "sun3d_17.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. metal gate lost and found box",
                "B. glass door bulletin board",
                "C. metal gate signpost",
                "D. metal gate corkboard"
            ],
            "correct_answer": [
                "glass door",
                "bulletin board"
            ],
            "correct_order": [
                "glass door",
                "bulletin board"
            ],
            "answer": "B"
        }
    },
    "18": {
        "id": "mit_w59_conference_conference_w59_nov_6_2012_scan1_erika",
        "video": "sun3d_18.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. cabinet rug",
                "B. microwave table",
                "C. bathtub faucet",
                "D. couch ottoman"
            ],
            "correct_answer": [
                "microwave",
                "table"
            ],
            "correct_order": [
                "microwave",
                "table"
            ],
            "answer": "B"
        }
    },
    "19": {
        "id": "mit_w85_2floor_2_stair_4",
        "video": "sun3d_19.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. antique vase metal gate elevator shaft",
                "B. clock tower steel gate basement corridor",
                "C. seesaw glass window slide",
                "D. bulletin board iron door stairwell"
            ],
            "correct_answer": [
                "bulletin board",
                "iron door",
                "stairwell"
            ],
            "correct_order": [
                "bulletin board",
                "iron door",
                "stairwell"
            ],
            "answer": "D"
        }
    },
    "21": {
        "id": "mit_w85_2floor_k_stair",
        "video": "sun3d_21.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. escalator pamphlet",
                "B. garden path street light",
                "C. stairs bulletin board",
                "D. escalator whiteboard"
            ],
            "correct_answer": [
                "stairs",
                "bulletin board"
            ],
            "correct_order": [
                "stairs",
                "bulletin board"
            ],
            "answer": "C"
        }
    },
    "24": {
        "id": "mit_w85_10_10_1",
        "video": "sun3d_24.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. bike table",
                "B. television box",
                "C. lamp shelf",
                "D. chair clock"
            ],
            "correct_answer": [
                "bike",
                "table"
            ],
            "correct_order": [
                "bike",
                "table"
            ],
            "answer": "A"
        }
    },
    "25": {
        "id": "mit_w85_10_10_2",
        "video": "sun3d_25.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. park bedroom",
                "B. waterfall office",
                "C. garden bedroom",
                "D. bike kitchen"
            ],
            "correct_answer": [
                "bike",
                "kitchen"
            ],
            "correct_order": [
                "bike",
                "kitchen"
            ],
            "answer": "D"
        }
    },
    "26": {
        "id": "mit_w85_11_11_1_2",
        "video": "sun3d_26.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. curtain rod plant stand wall clock bathroom",
                "B. painting backyard bathroom staircase",
                "C. painting vase curtain pantry",
                "D. desk bed shoe rack kitchen"
            ],
            "correct_answer": [
                "desk",
                "bed",
                "shoe rack",
                "kitchen"
            ],
            "correct_order": [
                "desk",
                "bed",
                "shoe rack",
                "kitchen"
            ],
            "answer": "D"
        }
    },
    "27": {
        "id": "mit_w85_12_12_1_1",
        "video": "sun3d_27.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. ottoman lampshade.",
                "B. bookshelf desk",
                "C. armchair cabinet",
                "D. painting rug"
            ],
            "correct_answer": [
                "bookshelf",
                "desk"
            ],
            "correct_order": [
                "bookshelf",
                "desk"
            ],
            "answer": "B"
        }
    },
    "28": {
        "id": "mit_w85_12_12_1_2",
        "video": "sun3d_28.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table",
                "B. chair lamp mirror",
                "C. chair lamp rug"
            ],
            "correct_answer": [
                "table"
            ],
            "correct_order": [
                "table"
            ],
            "answer": "A"
        }
    },
    "29": {
        "id": "mit_w85_basement_wg_big_lounge_1",
        "video": "sun3d_29.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. rugs and lamps curtains",
                "B. tables and chairs sofa",
                "C. shelves and stools curtains",
                "D. desks and bookshelves dining table"
            ],
            "correct_answer": [
                "tables and chairs",
                "sofa"
            ],
            "correct_order": [
                "tables and chairs",
                "sofa"
            ],
            "answer": "B"
        }
    },
    "30": {
        "id": "mit_w85_basement_wg_big_lounge_3",
        "video": "sun3d_30.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. mural kitchen",
                "B. monument living room",
                "C. stream park",
                "D. fountain park"
            ],
            "correct_answer": [
                "mural",
                "kitchen"
            ],
            "correct_order": [
                "mural",
                "kitchen"
            ],
            "answer": "A"
        }
    },
    "31": {
        "id": "mit_w85_basement_wg_laundary_lounge_1",
        "video": "sun3d_31.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. flower garden kitchen counter",
                "B. kitchen pantry front porch",
                "C. bookshelf laundry room",
                "D. staircase attic."
            ],
            "correct_answer": [
                "bookshelf",
                "laundry room"
            ],
            "correct_order": [
                "bookshelf",
                "laundry room"
            ],
            "answer": "C"
        }
    },
    "33": {
        "id": "mit_w85_lounge1_wg_lounge1_2",
        "video": "sun3d_33.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. elevator",
                "B. fountain lighthouse bridge",
                "C. water fountain"
            ],
            "correct_answer": [
                "elevator"
            ],
            "correct_order": [
                "elevator"
            ],
            "answer": "A"
        }
    },
    "34": {
        "id": "mit_w85_lounge1_wg_lounge1_3",
        "video": "sun3d_34.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. clock tower marble staircase",
                "B. information booth wooden fence",
                "C. mail slot metal gate",
                "D. bulletin board glass door"
            ],
            "correct_answer": [
                "bulletin board",
                "glass door"
            ],
            "correct_order": [
                "bulletin board",
                "glass door"
            ],
            "answer": "D"
        }
    },
    "35": {
        "id": "mit_w85_playroom_westgate_playroom_3",
        "video": "sun3d_35.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. stack of books traffic light",
                "B. board shelf play set",
                "C. puzzle rug train station",
                "D. toy table doll house"
            ],
            "correct_answer": [
                "toy table",
                "doll house"
            ],
            "correct_order": [
                "toy table",
                "doll house"
            ],
            "answer": "D"
        }
    },
    "36": {
        "id": "mit_w85a_a_living_room",
        "video": "sun3d_36.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. comfy sofa workstation kitchen island storage unit",
                "B. couch computer desk dining room table locker",
                "C. public fountain executive desk kitchen island school locker",
                "D. park swing executive desk living room coffee table school locker"
            ],
            "correct_answer": [
                "couch",
                "computer desk",
                "dining room table",
                "locker"
            ],
            "correct_order": [
                "couch",
                "computer desk",
                "dining room table",
                "locker"
            ],
            "answer": "B"
        }
    },
    "38": {
        "id": "mit_w85a_a3",
        "video": "sun3d_38.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. chandelier ottoman curtain",
                "B. couch stove mirror.",
                "C. dining table refrigerator window",
                "D. kitchen island cupboard skylight"
            ],
            "correct_answer": [
                "dining table",
                "refrigerator",
                "window"
            ],
            "correct_order": [
                "dining table",
                "refrigerator",
                "window"
            ],
            "answer": "C"
        }
    },
    "41": {
        "id": "mit_w85g_g_1",
        "video": "sun3d_41.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. flowerbed gazebo.",
                "B. bookcase kitchen",
                "C. playground skateboard",
                "D. chandelier living room"
            ],
            "correct_answer": [
                "bookcase",
                "kitchen"
            ],
            "correct_order": [
                "bookcase",
                "kitchen"
            ],
            "answer": "B"
        }
    },
    "44": {
        "id": "mit_w85j_j1",
        "video": "sun3d_44.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. flowery meadow bedroom",
                "B. tall tree bedroom",
                "C. green plant toilet",
                "D. tall tree garage"
            ],
            "correct_answer": [
                "green plant",
                "toilet"
            ],
            "correct_order": [
                "green plant",
                "toilet"
            ],
            "answer": "C"
        }
    },
    "45": {
        "id": "mit_w85j_j2",
        "video": "sun3d_45.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. wardrobe bunk bed",
                "B. wardrobe stroller",
                "C. shelf chair",
                "D. cupboard crib"
            ],
            "correct_answer": [
                "cupboard",
                "crib"
            ],
            "correct_order": [
                "cupboard",
                "crib"
            ],
            "answer": "D"
        }
    },
    "47": {
        "id": "mit_w85k1_scan_1",
        "video": "sun3d_47.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. bed near the curtains door",
                "B. rug under the table mirror.",
                "C. wardrobe next to the mirror chair",
                "D. chair next to the plant window"
            ],
            "correct_answer": [
                "bed near the curtains",
                "door"
            ],
            "correct_order": [
                "bed near the curtains",
                "door"
            ],
            "answer": "A"
        }
    },
    "49": {
        "id": "mit_w85k2_k2",
        "video": "sun3d_49.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. rug shower desk painting",
                "B. clock cabinet painting curtain",
                "C. mirror toilet sofa window",
                "D. painting rug chandelier plant"
            ],
            "correct_answer": [
                "mirror",
                "toilet",
                "sofa",
                "window"
            ],
            "correct_order": [
                "mirror",
                "toilet",
                "sofa",
                "window"
            ],
            "answer": "C"
        }
    },
    "50": {
        "id": "providence_station_providence_station",
        "video": "sun3d_50.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. cabinet",
                "B. sink",
                "C. mirror"
            ],
            "correct_answer": [
                "cabinet"
            ],
            "correct_order": [
                "cabinet"
            ],
            "answer": "A"
        }
    },
    "51": {
        "id": "brown_bm_1_brown_bm_1",
        "video": "sun3d_51.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. red lamp portrait copier desks",
                "B. blue television drawing copier desks",
                "C. blue washing machine portrait fax machine office desks",
                "D. black refrigerator painting printer cubicles"
            ],
            "correct_answer": [
                "black refrigerator",
                "painting",
                "printer",
                "cubicles"
            ],
            "correct_order": [
                "black refrigerator",
                "painting",
                "printer",
                "cubicles"
            ],
            "answer": "D"
        }
    },
    "52": {
        "id": "brown_cs_7_brown_cs7",
        "video": "sun3d_52.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. purple low wall sofas",
                "B. red narrow railing armchairs.",
                "C. blue narrow bridge chairs.",
                "D. blue narrow gate armchairs."
            ],
            "correct_answer": [
                "purple low wall",
                "sofas"
            ],
            "correct_order": [
                "purple low wall",
                "sofas"
            ],
            "answer": "A"
        }
    },
    "53": {
        "id": "brown_cs_8_brown_cs8",
        "video": "sun3d_53.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. red microwave recycling bin yellow ottoman blackboard",
                "B. purple kettle wooden ladder pink notebook black headphones",
                "C. silver refrigerator trash bin orange high stool whiteboard",
                "D. blue toaster compost bin green counter stool chalkboard"
            ],
            "correct_answer": [
                "silver refrigerator",
                "trash bin",
                "orange high stool",
                "whiteboard"
            ],
            "correct_order": [
                "silver refrigerator",
                "trash bin",
                "orange high stool",
                "whiteboard"
            ],
            "answer": "C"
        }
    },
    "54": {
        "id": "brown_cs_9_brown_cs9",
        "video": "sun3d_54.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. traffic light couches pair of couches midpoint",
                "B. traffic signs benches collection of benches ending location",
                "C. intersection tables set of tables starting point",
                "D. crosswalk clusters collection of clusters ending position"
            ],
            "correct_answer": [
                "intersection",
                "tables",
                "set of tables",
                "starting point"
            ],
            "correct_order": [
                "intersection",
                "tables",
                "set of tables",
                "starting point"
            ],
            "answer": "C"
        }
    },
    "55": {
        "id": "brown_cs_10_brown_cs10",
        "video": "sun3d_55.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. comfy stool dim hallway fake tree hanging painting",
                "B. long bench sofa dark room potted plant",
                "C. old clock glass desk dusty attic blooming flower",
                "D. twisting staircase velvet chair dim hallway rusty bicycle"
            ],
            "correct_answer": [
                "long bench",
                "sofa",
                "dark room",
                "potted plant"
            ],
            "correct_order": [
                "long bench",
                "sofa",
                "dark room",
                "potted plant"
            ],
            "answer": "B"
        }
    },
    "56": {
        "id": "harvard_c2_hv_c2_1",
        "video": "sun3d_56.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. blackboard table",
                "B. whiteboard couch.",
                "C. chair shelf",
                "D. mirror lamp"
            ],
            "correct_answer": [
                "blackboard",
                "table"
            ],
            "correct_order": [
                "blackboard",
                "table"
            ],
            "answer": "A"
        }
    },
    "57": {
        "id": "harvard_c2_hv_c2_2",
        "video": "sun3d_57.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. shiny fork busy intersection",
                "B. long table world map",
                "C. windy street ancient compass",
                "D. mysterious cave secret code"
            ],
            "correct_answer": [
                "long table",
                "world map"
            ],
            "correct_order": [
                "long table",
                "world map"
            ],
            "answer": "B"
        }
    },
    "58": {
        "id": "harvard_c3_hv_c3_1",
        "video": "sun3d_58.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. blue rug round mirror",
                "B. chalkboard rectangular table",
                "C. red lamp round vase.",
                "D. blackboard long table"
            ],
            "correct_answer": [
                "blackboard",
                "long table"
            ],
            "correct_order": [
                "blackboard",
                "long table"
            ],
            "answer": "D"
        }
    },
    "59": {
        "id": "harvard_c3_hv_c3_2",
        "video": "sun3d_59.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. yellow window green square table whiteboard square rug.",
                "B. brown door black long table blackboard long table",
                "C. round red chair small white table whiteboard long bench",
                "D. yellow curtain blue round rug whiteboard round rug"
            ],
            "correct_answer": [
                "brown door",
                "black long table",
                "blackboard",
                "long table"
            ],
            "correct_order": [
                "brown door",
                "black long table",
                "blackboard",
                "long table"
            ],
            "answer": "B"
        }
    },
    "60": {
        "id": "harvard_c4_hv_c4_1",
        "video": "sun3d_60.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. door black stools red stools",
                "B. orange curtains purple benches pink shelves",
                "C. ceiling yellow couch orange couch",
                "D. purple door yellow stools orange stools"
            ],
            "correct_answer": [
                "door",
                "black stools",
                "red stools"
            ],
            "correct_order": [
                "door",
                "black stools",
                "red stools"
            ],
            "answer": "A"
        }
    },
    "61": {
        "id": "harvard_c4_hv_c4_2",
        "video": "sun3d_61.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. green hats roof",
                "B. red stools door",
                "C. yellow benches corridor.",
                "D. green benches wall."
            ],
            "correct_answer": [
                "red stools",
                "door"
            ],
            "correct_order": [
                "red stools",
                "door"
            ],
            "answer": "B"
        }
    },
    "62": {
        "id": "harvard_c4_hv_c4_3",
        "video": "sun3d_62.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. red stools",
                "B. blue tables",
                "C. blue chairs"
            ],
            "correct_answer": [
                "red stools"
            ],
            "correct_order": [
                "red stools"
            ],
            "answer": "A"
        }
    },
    "63": {
        "id": "harvard_c5_hv_c5_1",
        "video": "sun3d_63.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. whiteboard",
                "B. bookshelf",
                "C. mountain peak"
            ],
            "correct_answer": [
                "whiteboard"
            ],
            "correct_order": [
                "whiteboard"
            ],
            "answer": "A"
        }
    },
    "64": {
        "id": "harvard_c9_hv_c9_2",
        "video": "sun3d_64.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. blue curtain oval mirror",
                "B. circular window narrow bench",
                "C. window long table",
                "D. upside-down clock rectangular fountain"
            ],
            "correct_answer": [
                "window",
                "long table"
            ],
            "correct_order": [
                "window",
                "long table"
            ],
            "answer": "C"
        }
    },
    "65": {
        "id": "harvard_computer_lab_hv_c1_1",
        "video": "sun3d_65.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. computer desks rows of computer desks",
                "B. office cubicles clusters of office cubicles",
                "C. library tables piles of library tables",
                "D. office desks piles of office desks"
            ],
            "correct_answer": [
                "computer desks",
                "rows of computer desks"
            ],
            "correct_order": [
                "computer desks",
                "rows of computer desks"
            ],
            "answer": "A"
        }
    },
    "66": {
        "id": "harvard_computer_lab_hv_c1_2",
        "video": "sun3d_66.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. computer desks gap between the computer desks desks whiteboard",
                "B. office chairs space between the office chairs office furniture presentation screen",
                "C. filing cabinets distance between the filing cabinets cabinets presentation screen",
                "D. swivel chairs distance away from the swivel chairs chairs projection screen"
            ],
            "correct_answer": [
                "computer desks",
                "gap between the computer desks",
                "desks",
                "whiteboard"
            ],
            "correct_order": [
                "computer desks",
                "gap between the computer desks",
                "desks",
                "whiteboard"
            ],
            "answer": "A"
        }
    },
    "67": {
        "id": "harvard_conf_big_hv_conf_big_1",
        "video": "sun3d_67.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. yellow couch black desks",
                "B. orange stools silver shelves",
                "C. blue chair white tables",
                "D. circular rug yellow cabinets"
            ],
            "correct_answer": [
                "blue chair",
                "white tables"
            ],
            "correct_order": [
                "blue chair",
                "white tables"
            ],
            "answer": "C"
        }
    },
    "68": {
        "id": "harvard_corridor_lounge_hv_corridor1_1",
        "video": "sun3d_68.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. tables",
                "B. chairs lamps desks",
                "C. chairs desks lamps"
            ],
            "correct_answer": [
                "tables"
            ],
            "correct_order": [
                "tables"
            ],
            "answer": "A"
        }
    },
    "69": {
        "id": "harvard_corridor_lounge_hv_corridor1_1",
        "video": "sun3d_69.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. posters",
                "B. paintings",
                "C. fountains"
            ],
            "correct_answer": [
                "posters"
            ],
            "correct_order": [
                "posters"
            ],
            "answer": "A"
        }
    },
    "70": {
        "id": "harvard_corridor_lounge_hv_lounge_corridor_1",
        "video": "sun3d_70.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. ceiling fan decorative vase.",
                "B. sofa potted plant",
                "C. ottoman decorative vase",
                "D. end table hanging plant"
            ],
            "correct_answer": [
                "sofa",
                "potted plant"
            ],
            "correct_order": [
                "sofa",
                "potted plant"
            ],
            "answer": "B"
        }
    },
    "71": {
        "id": "harvard_corridor_lounge_hv_lounge_corridor2_1",
        "video": "sun3d_71.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. circular mirror black chair succulent plant",
                "B. white cabinet sofa potted plant",
                "C. blue dresser armchair hanging vine plant.",
                "D. red shelf armchair bamboo plant."
            ],
            "correct_answer": [
                "white cabinet",
                "sofa",
                "potted plant"
            ],
            "correct_order": [
                "white cabinet",
                "sofa",
                "potted plant"
            ],
            "answer": "B"
        }
    },
    "72": {
        "id": "providence_station_providence_station",
        "video": "sun3d_72.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. tinted window coffee table",
                "B. antique wardrobe coffee bar",
                "C. mirror stand kitchen counter",
                "D. glass cabinet dining table"
            ],
            "correct_answer": [
                "glass cabinet",
                "dining table"
            ],
            "correct_order": [
                "glass cabinet",
                "dining table"
            ],
            "answer": "D"
        }
    },
    "75": {
        "id": "mit_w85k2_k2",
        "video": "sun3d_75.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. kitchen cabinet kitchen sink",
                "B. office desk office computer",
                "C. bedroom closet bedroom bathtub",
                "D. kitchen dining room kitchen stove."
            ],
            "correct_answer": [
                "bedroom",
                "closet",
                "bedroom",
                "bathtub"
            ],
            "correct_order": [
                "bedroom",
                "closet",
                "bedroom",
                "bathtub"
            ],
            "answer": "C"
        }
    },
    "76": {
        "id": "mit_w85k2_k1",
        "video": "sun3d_76.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. pantry bathroom bathtub",
                "B. garden bathroom bathtub",
                "C. toilet bedroom bed",
                "D. bathroom living room couch"
            ],
            "correct_answer": [
                "toilet",
                "bedroom",
                "bed"
            ],
            "correct_order": [
                "toilet",
                "bedroom",
                "bed"
            ],
            "answer": "C"
        }
    },
    "77": {
        "id": "mit_w85k1_scan_3",
        "video": "sun3d_77.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. curtains bedroom door bed",
                "B. rugs kitchen table chair",
                "C. chandelier dining room rug table",
                "D. painting kitchen table fridge"
            ],
            "correct_answer": [
                "curtains",
                "bedroom",
                "door",
                "bed"
            ],
            "correct_order": [
                "curtains",
                "bedroom",
                "door",
                "bed"
            ],
            "answer": "A"
        }
    },
    "78": {
        "id": "mit_w85k1_scan_2",
        "video": "sun3d_78.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. drapes couch game cupboard",
                "B. window blinds armchair bookshelf",
                "C. curtains sofa toy cabinet",
                "D. clock rug plant stand"
            ],
            "correct_answer": [
                "curtains",
                "sofa",
                "toy cabinet"
            ],
            "correct_order": [
                "curtains",
                "sofa",
                "toy cabinet"
            ],
            "answer": "C"
        }
    },
    "81": {
        "id": "mit_dorm_next_552_dorm_next_552_oct_30_2012_scan1_erika",
        "video": "sun3d_81.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. curtain",
                "B. mirror bookcase rug",
                "C. painting gallery wave"
            ],
            "correct_answer": [
                "curtain"
            ],
            "correct_order": [
                "curtain"
            ],
            "answer": "A"
        }
    },
    "82": {
        "id": "mit_dorm_next_536_dorm_next_536_oct_29_2012_scan1_erika",
        "video": "sun3d_82.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. continue ahead keep going forward take a left turn head straight ahead",
                "B. turn back go straight turn right turn right",
                "C. turn back turn right go straight turn right",
                "D. proceed forward make a U-turn veer to the left turn right"
            ],
            "correct_answer": [
                "turn back",
                "go straight",
                "turn right",
                "turn right"
            ],
            "correct_order": [
                "turn back",
                "go straight",
                "turn right",
                "turn right"
            ],
            "answer": "B"
        }
    },
    "83": {
        "id": "mit_dorm_mcc_wph_dorm_mcc_wph_oct_31_2012_scan1_erika",
        "video": "sun3d_83.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. iron gate",
                "B. golden key",
                "C. wooden door"
            ],
            "correct_answer": [
                "iron gate"
            ],
            "correct_order": [
                "iron gate"
            ],
            "answer": "A"
        }
    },
    "84": {
        "id": "mit_dorm_mcc_wflr7_dorm_mcc_wflr7_oct_31_2012_scan1_erika",
        "video": "sun3d_84.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. sofa table",
                "B. television rug",
                "C. bookshelf rug",
                "D. rug shelves"
            ],
            "correct_answer": [
                "sofa",
                "table"
            ],
            "correct_order": [
                "sofa",
                "table"
            ],
            "answer": "A"
        }
    },
    "85": {
        "id": "mit_dorm_mcc_nk_dorm_mcc_nk_oct_31_2012_scan1_erika",
        "video": "sun3d_85.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. center of the hallway end of the line",
                "B. table top of the dresser",
                "C. desk head of the bed",
                "D. sink top of the chair"
            ],
            "correct_answer": [
                "desk",
                "head of the bed"
            ],
            "correct_order": [
                "desk",
                "head of the bed"
            ],
            "answer": "C"
        }
    },
    "86": {
        "id": "mit_dorm_mcc_eflr6_dorm_mcc_eflr6_oct_31_2012_scan1_erika",
        "video": "sun3d_86.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. wooden door wooden door"
            ],
            "correct_answer": [
                "wooden door",
                "wooden door"
            ],
            "correct_order": [
                "wooden door",
                "wooden door"
            ],
            "answer": "A"
        }
    },
    "88": {
        "id": "mit_dorm_masseeh_xc_dorm_masseeh_xc_oct_29_2012_scan1_erika",
        "video": "sun3d_88.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. left left left"
            ],
            "correct_answer": [
                "left",
                "left",
                "left"
            ],
            "correct_order": [
                "left",
                "left",
                "left"
            ],
            "answer": "A"
        }
    },
    "89": {
        "id": "mit_dorm_masseeh_sr_dorm_masseeh_sr_scan1_oct_26_2012_erika",
        "video": "sun3d_89.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. mirror painting",
                "B. door window",
                "C. painting rug",
                "D. chair mirror"
            ],
            "correct_answer": [
                "door",
                "window"
            ],
            "correct_order": [
                "door",
                "window"
            ],
            "answer": "B"
        }
    },
    "90": {
        "id": "mit_dorm_masseeh_md_dorm_masseeh_md_scan1_oct_26_2012_erika",
        "video": "sun3d_90.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. kitchen stove",
                "B. bathroom desk",
                "C. fireplace bed",
                "D. garden couch"
            ],
            "correct_answer": [
                "fireplace",
                "bed"
            ],
            "correct_order": [
                "fireplace",
                "bed"
            ],
            "answer": "C"
        }
    },
    "91": {
        "id": "mit_dorm_masseeh_flr4a_dorm_masseeh_flr4_scan1_oct_26_2012_erika",
        "video": "sun3d_91.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. whiteboard",
                "B. blackboard",
                "C. easel canvas paint"
            ],
            "correct_answer": [
                "whiteboard"
            ],
            "correct_order": [
                "whiteboard"
            ],
            "answer": "A"
        }
    },
    "92": {
        "id": "mit_dorm_ec_tam_dorm_ec_tam_oct_30_2012_scan1_erika",
        "video": "sun3d_92.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. rug mirror.",
                "B. couch window",
                "C. rug mirror",
                "D. curtain mirror."
            ],
            "correct_answer": [
                "couch",
                "window"
            ],
            "correct_order": [
                "couch",
                "window"
            ],
            "answer": "B"
        }
    },
    "94": {
        "id": "mit_76_studyroom_76-1studyroom2",
        "video": "sun3d_94.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. rug painting",
                "B. mirror rug",
                "C. table sofa",
                "D. rug mirror"
            ],
            "correct_answer": [
                "table",
                "sofa"
            ],
            "correct_order": [
                "table",
                "sofa"
            ],
            "answer": "C"
        }
    },
    "95": {
        "id": "mit_76_459_76-459b",
        "video": "sun3d_95.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. pile of chairs pile of chairs"
            ],
            "correct_answer": [
                "pile of chairs",
                "pile of chairs"
            ],
            "correct_order": [
                "pile of chairs",
                "pile of chairs"
            ],
            "answer": "A"
        }
    },
    "96": {
        "id": "mit_76_458_76-458a",
        "video": "sun3d_96.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table",
                "B. chair desk lamp",
                "C. chair lamp bookshelf"
            ],
            "correct_answer": [
                "table"
            ],
            "correct_order": [
                "table"
            ],
            "answer": "A"
        }
    },
    "97": {
        "id": "mit_76_458_76-458b",
        "video": "sun3d_97.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table",
                "B. chair lamp rug",
                "C. chair lamp window"
            ],
            "correct_answer": [
                "table"
            ],
            "correct_order": [
                "table"
            ],
            "answer": "A"
        }
    },
    "99": {
        "id": "mit_46_ted_lab2_ted_lab_a",
        "video": "sun3d_99.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. spinning stool pantry",
                "B. office desk filing cabinet",
                "C. recliner bookshelf",
                "D. swivel chair cupboard"
            ],
            "correct_answer": [
                "swivel chair",
                "cupboard"
            ],
            "correct_order": [
                "swivel chair",
                "cupboard"
            ],
            "answer": "D"
        }
    },
    "100": {
        "id": "mit_46_ted_lab1_ted_lab_2",
        "video": "sun3d_100.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. kitchen counter refrigerator",
                "B. computer desk bed",
                "C. dining table sofa",
                "D. kitchen island picture frame"
            ],
            "correct_answer": [
                "computer desk",
                "bed"
            ],
            "correct_order": [
                "computer desk",
                "bed"
            ],
            "answer": "B"
        }
    },
    "101": {
        "id": "mit_46_ted_lab1_ted_lab_1",
        "video": "sun3d_101.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. pile of chairs room bookshelf",
                "B. painting on wall kitchen coat rack",
                "C. row of desks corridor street sign",
                "D. line of tables corridor sculpture"
            ],
            "correct_answer": [
                "pile of chairs",
                "room",
                "bookshelf"
            ],
            "correct_order": [
                "pile of chairs",
                "room",
                "bookshelf"
            ],
            "answer": "A"
        }
    },
    "102": {
        "id": "mit_46_6lounge_bcs_floor6_play_only",
        "video": "sun3d_102.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. ping-pong table",
                "B. pool table",
                "C. juggling balls"
            ],
            "correct_answer": [
                "ping-pong table"
            ],
            "correct_order": [
                "ping-pong table"
            ],
            "answer": "A"
        }
    },
    "103": {
        "id": "mit_46_6lounge_bcs_floor6_play_1",
        "video": "sun3d_103.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. chair",
                "B. lamp table couch",
                "C. lamp table desk"
            ],
            "correct_answer": [
                "chair"
            ],
            "correct_order": [
                "chair"
            ],
            "answer": "A"
        }
    },
    "104": {
        "id": "mit_46_6lounge_bcs_floor6_low_lounge",
        "video": "sun3d_104.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. bookshelf and ottoman",
                "B. artificial flowers and wall paintings fluffy pillows",
                "C. cushions and curtains rug and clock",
                "D. tables and chairs potted plant"
            ],
            "correct_answer": [
                "tables and chairs",
                "potted plant"
            ],
            "correct_order": [
                "tables and chairs",
                "potted plant"
            ],
            "answer": "D"
        }
    },
    "106": {
        "id": "mit_46_6conf_bcs_floor6_conf_2",
        "video": "sun3d_106.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. row of trees row of trees picture frame",
                "B. pile of chairs pile of chairs curtain",
                "C. bookshelf with plants bookshelf with plants painting",
                "D. heap of papers pile of documents clock"
            ],
            "correct_answer": [
                "pile of chairs",
                "pile of chairs",
                "curtain"
            ],
            "correct_order": [
                "pile of chairs",
                "pile of chairs",
                "curtain"
            ],
            "answer": "B"
        }
    },
    "107": {
        "id": "mit_46_6conf_bcs_floor6_conf_1",
        "video": "sun3d_107.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. pile of chairs pile of chairs"
            ],
            "correct_answer": [
                "pile of chairs",
                "pile of chairs"
            ],
            "correct_order": [
                "pile of chairs",
                "pile of chairs"
            ],
            "answer": "A"
        }
    },
    "109": {
        "id": "mit_46_5lounge_bcs_floor5_lounge",
        "video": "sun3d_109.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table and chair",
                "B. lamp and rug",
                "C. couch lamp"
            ],
            "correct_answer": [
                "table and chair"
            ],
            "correct_order": [
                "table and chair"
            ],
            "answer": "A"
        }
    },
    "110": {
        "id": "mit_46_5conf_2_bcs_floor5_conf_b",
        "video": "sun3d_110.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. sofa",
                "B. lamp table chair",
                "C. lamp desk rug"
            ],
            "correct_answer": [
                "sofa"
            ],
            "correct_order": [
                "sofa"
            ],
            "answer": "A"
        }
    },
    "111": {
        "id": "mit_46_5conf_2_bcs_floor5_conf_a",
        "video": "sun3d_111.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table long table",
                "B. desk extra large desk",
                "C. ottoman fluffy ottoman",
                "D. sofa comfortable sofa"
            ],
            "correct_answer": [
                "table",
                "long table"
            ],
            "correct_order": [
                "table",
                "long table"
            ],
            "answer": "A"
        }
    },
    "112": {
        "id": "mit_46_5conf_1_bcs_floor5_conf_2",
        "video": "sun3d_112.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. tall shelf square lamp white curtain",
                "B. painting oval mirror bookshelf",
                "C. painting circular rug shelf",
                "D. chair long table door"
            ],
            "correct_answer": [
                "chair",
                "long table",
                "door"
            ],
            "correct_order": [
                "chair",
                "long table",
                "door"
            ],
            "answer": "D"
        }
    },
    "115": {
        "id": "mit_46_4conf_2_bcs_floor4_conf_b",
        "video": "sun3d_115.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. oval rug curtain",
                "B. long table door",
                "C. narrow hallway window",
                "D. curved bench ceiling"
            ],
            "correct_answer": [
                "long table",
                "door"
            ],
            "correct_order": [
                "long table",
                "door"
            ],
            "answer": "B"
        }
    },
    "116": {
        "id": "mit_46_4conf_1_bcs_floor4_conf_2",
        "video": "sun3d_116.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. long table chair conference room round table",
                "B. flagpole stool picnic table park bench",
                "C. tall tower bench waiting area oval table",
                "D. rectangular desk armchair meeting room oval table"
            ],
            "correct_answer": [
                "long table",
                "chair",
                "conference room",
                "round table"
            ],
            "correct_order": [
                "long table",
                "chair",
                "conference room",
                "round table"
            ],
            "answer": "A"
        }
    },
    "117": {
        "id": "mit_46_4conf_1_bcs_floor4_conf_1",
        "video": "sun3d_117.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. circular platform bench",
                "B. oval rug floor lamp",
                "C. rectangular desk stool",
                "D. long table chair"
            ],
            "correct_answer": [
                "long table",
                "chair"
            ],
            "correct_order": [
                "long table",
                "chair"
            ],
            "answer": "D"
        }
    },
    "119": {
        "id": "hotel_m_scan1",
        "video": "sun3d_119.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. closet mirror",
                "B. Picture frame floor.",
                "C. cupboard window",
                "D. mirror rug"
            ],
            "correct_answer": [
                "cupboard",
                "window"
            ],
            "correct_order": [
                "cupboard",
                "window"
            ],
            "answer": "C"
        }
    },
    "125": {
        "id": "hotel_graz_scan1_2012_aug_29",
        "video": "sun3d_125.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. window",
                "B. door",
                "C. door lamp mirror"
            ],
            "correct_answer": [
                "window"
            ],
            "correct_order": [
                "window"
            ],
            "answer": "A"
        }
    },
    "129": {
        "id": "hotel_barcelona_scan1_2012_july_23",
        "video": "sun3d_129.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. sofa shelf",
                "B. bed table",
                "C. couch desk",
                "D. wardrobe dining table"
            ],
            "correct_answer": [
                "bed",
                "table"
            ],
            "correct_order": [
                "bed",
                "table"
            ],
            "answer": "B"
        }
    },
    "130": {
        "id": "home_rz_home_rz_scan1_2012_oct_31",
        "video": "sun3d_130.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table",
                "B. chair lamp rug",
                "C. chair"
            ],
            "correct_answer": [
                "table"
            ],
            "correct_order": [
                "table"
            ],
            "answer": "A"
        }
    },
    "132": {
        "id": "home_puigpunyen_home_puigpunyent_scan3_2012_aug_26",
        "video": "sun3d_132.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. bed",
                "B. chair",
                "C. table lamp chair"
            ],
            "correct_answer": [
                "bed"
            ],
            "correct_order": [
                "bed"
            ],
            "answer": "A"
        }
    },
    "136": {
        "id": "home_ph_cz_ph_cz_2",
        "video": "sun3d_136.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. refrigerator toaster",
                "B. nightstand bed",
                "C. lamp bookshelf",
                "D. bookshelf lamp"
            ],
            "correct_answer": [
                "nightstand",
                "bed"
            ],
            "correct_order": [
                "nightstand",
                "bed"
            ],
            "answer": "B"
        }
    },
    "137": {
        "id": "home_ph_cz_ph_cz_1",
        "video": "sun3d_137.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. nightstand bed",
                "B. chandelier rug",
                "C. dresser closet",
                "D. ottoman rug"
            ],
            "correct_answer": [
                "nightstand",
                "bed"
            ],
            "correct_order": [
                "nightstand",
                "bed"
            ],
            "answer": "A"
        }
    },
    "138": {
        "id": "home_md_home_md_scan1_2012_july_9",
        "video": "sun3d_138.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. rug lamp",
                "B. rug plant",
                "C. sofa floor",
                "D. table window"
            ],
            "correct_answer": [
                "table",
                "window"
            ],
            "correct_order": [
                "table",
                "window"
            ],
            "answer": "D"
        }
    },
    "139": {
        "id": "home_han_apartment_han_oct_31_2012_scan1_erika",
        "video": "sun3d_139.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. bookshelf",
                "B. coffee table",
                "C. lamp post"
            ],
            "correct_answer": [
                "bookshelf"
            ],
            "correct_order": [
                "bookshelf"
            ],
            "answer": "A"
        }
    },
    "140": {
        "id": "home_bksh_home_bksh_oct_30_2012_scan2_erika",
        "video": "sun3d_140.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. painting window shelf",
                "B. rug mirror lamp",
                "C. drapes garage desk",
                "D. couch door bed"
            ],
            "correct_answer": [
                "couch",
                "door",
                "bed"
            ],
            "correct_order": [
                "couch",
                "door",
                "bed"
            ],
            "answer": "D"
        }
    },
    "141": {
        "id": "bksh_home_bksh_2012_oct_19_scan1",
        "video": "sun3d_141.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. sofa end table picture frame",
                "B. table coffee table curtain",
                "C. lamp floor lamp rug",
                "D. ceiling fan desk lamp window blinds"
            ],
            "correct_answer": [
                "table",
                "coffee table",
                "curtain"
            ],
            "correct_order": [
                "table",
                "coffee table",
                "curtain"
            ],
            "answer": "B"
        }
    },
    "143": {
        "id": "home_amo_floor2-1",
        "video": "sun3d_143.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. mountain river",
                "B. bathroom chair",
                "C. kitchen couch",
                "D. garage armchair"
            ],
            "correct_answer": [
                "kitchen",
                "couch"
            ],
            "correct_order": [
                "kitchen",
                "couch"
            ],
            "answer": "C"
        }
    },
    "145": {
        "id": "home_ag_apartment_ag_nov_7_2012_scan1_erika",
        "video": "sun3d_145.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. table",
                "B. chair lamp rug",
                "C. chair lamp bed"
            ],
            "correct_answer": [
                "table"
            ],
            "correct_order": [
                "table"
            ],
            "answer": "A"
        }
    },
    "146": {
        "id": "harvard_c9_hv_c9_2",
        "video": "sun3d_146.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. cupboard",
                "B. bookshelf wardrobe cabinet",
                "C. wardrobe shelving unit pantry"
            ],
            "correct_answer": [
                "cupboard"
            ],
            "correct_order": [
                "cupboard"
            ],
            "answer": "A"
        }
    },
    "148": {
        "id": "brown_cogsci_2_brown_cogsci_2",
        "video": "sun3d_148.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. cupboard",
                "B. painting on wall",
                "C. bookshelf closet desk"
            ],
            "correct_answer": [
                "cupboard"
            ],
            "correct_order": [
                "cupboard"
            ],
            "answer": "A"
        }
    },
    "149": {
        "id": "brown_bm_6_brown_bm_6",
        "video": "sun3d_149.mp4",
        "reverse_mcq": {
            "question": "Please take a egocentric view to understand the following questions.Based on this video, which landmarks (objects or scenery changes) did you pass by to return to the starting point?",
            "options": [
                "A. cabinet",
                "B. bookshelf wardrobe nightstand",
                "C. wardrobe dresser bookshelf"
            ],
            "correct_answer": [
                "cabinet"
            ],
            "correct_order": [
                "cabinet"
            ],
            "answer": "A"
        }
    }
}