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

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: are they on the skating floor?
a: Yes
q: are they wearing a white tank top?
a: No
q: are the on the way on the left?
a: No
q: are they by the wall?
a: Yes
q: are they wearing a blue helmet?
a: Yes