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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the ski lift?
a: No
q: is it a tree?
a: No
q: is it a pair of skis?
a: Yes
q: is the pair of the person in front?
a: No
q: is it the pair of the person directly behind them?
a: Yes