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

Guessing-game dialogue about one of the objects:
q: is it a human?
a: No
q: is it ski clothing?
a: Yes
q: Is one of the four people wearing an orange cap?
a: No
q: the guy just behind him?
a: Yes
q: is it his cap?
a: No
q: his pants?
a: No
q: his jacket?
a: No
q: his ski stick?
a: No
q: his backpack?
a: Yes