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

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: is a bag?
a: No
q: is it being worn by the skier?
a: Yes
q: is the skis?
a: Yes
q: are they one object?
a: No
q: is the left?
a: No