human
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
In a classroom, the teacher places a green apple on her desk before leaving for lunch. Student A notices the apple and moves it to the windowsill so she can draw it as part of an art project. While she's away getting supplies, Student B takes the apple from the windowsill and puts it in his backpack, planning to eat it later. Finally, Student C finds the apple in Student B's backpack and returns it to the teacher's desk. What does each person believe about the location of the green apple?
Provide a very brief response.

### Response:
gpt
Student A believes the green apple is on the windowsill where she left it to use as a reference for her art project. She is unaware that Student B has moved it since she has been away gathering supplies for her artwork.

Student B believes the green apple is in his backpack. He is unaware that Student C has discovered it and moved it, as he intended to eat the apple later and has not yet checked his backpack.

Student C is aware that the green apple is on the teacher's desk because after finding it in Student B's backpack, they personally returned it to its original location.