Objects in the image:
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
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it on air?
a: Yes
q: is its head is under its legs?
a: No
q: does they have both hands on the bike?
a: Yes