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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: skies  ??
a: No
q: backpack ??
a: Yes
q: black backpack on the guy in front wearing blue?
a: Yes