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

Guessing-game dialogue about one of the objects:
q: Is it human?
a: No
q: is it a pair of skis?
a: No
q: is it a tree?
a: No
q: is it in the background?
a: No
q: is it human?
a: No
q: is it in the left half of the photo?
a: No
q: is it poles held in the hand of a man?
a: No
q: is it a backpack?
a: Yes