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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a tree?
a: No
q: is it a ramp?
a: No
q: is it skateboard related?
a: Yes
q: is it a skateboard?
a: Yes
q: is it in the air?
a: Yes