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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it being worn or used by a person?
a: Yes
q: Is it a pair of skis?
a: No
q: Is it a single ski?
a: No
q: Is it clothing?
a: No
q: Is it a backpack?
a: Yes
q: Is it the pack on the left?
a: Yes