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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it a man?
a: Yes
q: is he holding a skateboard?
a: No
q: is he on a bike?
a: Yes