{"sentence1": "Tom threw his schoolbag down to Ray after he reached the bottom of the stairs.", "sentence2": "Ray reached the bottom of the stairs.", "label": 1}

{"sentence1": "We went to the lake, because a shark had been seen at the ocean beach, so it was a safer place to swim.", "sentence2": "The lake was a safer place to swim.", "label": 1}

{"sentence1": "Kirilov ceded the presidency to Shatov because he was less popular.", "sentence2": "Kirilov was less popular.", "label": 1}
{"sentence1": "After realizing they had left their credit card at the hotel, John and Emily immediately drove back to retrieve it because she had already checked out and wouldn't be able to.", "sentence2": "Emily had already checked out and wouldn't be able to retrieve the card.", "label": 1}