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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it something the person is touching?
a: No
q: is it on the person's back?
a: Yes
q: is it the skis?
a: No
q: is it the backpack?
a: Yes
q: guy in the front?
a: Yes