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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a skating wheel?
a: Yes
q: is it with man wearing backpack?
a: No
q: is it with person on left of us?
a: Yes