Objects in the image:
category: person
category: backpack
category: person
category: skis
category: skis

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a tree?
a: No
q: Is it a sign?
a: No
q: Is it being worn by a person?
a: Yes
q: Is it a backpack?
a: Yes