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

Guessing-game dialogue about one of the objects:
q: is it the man n skis?
a: No
q: is it the sign?
a: No
q: is it the trees?
a: No
q: is it worn by the skier?
a: Yes
q: is it the skis?
a: No
q: is it the backpack?
a: Yes