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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a rock?
a: No
q: Is it something that the person is wearing?
a: Yes
q: Is it a ski?
a: Yes
q: Is it the left ski?
a: Yes
q: Is it the right ski?
a: Yes
q: Is both skis?
a: Yes