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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a ski pole?
a: No
q: is it a ski?
a: Yes
q: is it one of the skis the man in front is on?
a: Yes
q: is it the left one?
a: Yes
q: is it both skis?
a: Yes