In a park, there are three friends: Alice, Bob, and Carol. Alice has a red backpack with her favorite book inside it. She leaves the backpack on a bench while she goes to buy ice cream. Meanwhile, Bob sees a bluebird flying nearby and decides to follow it. Unbeknownst to them, Carol moves Alice's backpack from the bench to under a tree for shade. Later, a dog comes by and knocks over the backpack, spilling the contents. The owner of the dog quickly picks up the items and places them in a green bag before leaving the scene. When Alice returns, where will she think her backpack is?

Respond very briefly.
Alice left her backpack on a bench before going to buy ice cream, so upon returning, she will likely first look for her backpack on the bench where she originally placed it. Since she was not aware that Carol moved her backpack under a tree, nor that the dog knocked it over and that the contents were placed in a green bag by the dog's owner, Alice will not have any reason to initially think her backpack is anywhere but on the bench.