A box called one covers a medium orange apple. Over and to the left-hand side of this box is another box called two. Box one is disconnected from this box. A medium orange apple is in box two. Box two covers a medium green apple. Another box called three is inside and touching this box. A medium green apple touches a yellow apple. The medium green apple is inside box three. Box three covers the yellow fruit.
What is the position of the yellow apple regarding box three?