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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it snowboard?
a: Yes
q: one behind boy?
a: Yes