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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he on a skateboard?
a: No
q: is he wearing a black tshirt?
a: No
q: Is he wearing a white shirt with black sleeves?
a: No
q: is he behind the person on the skateboard?
a: No
q: is he wearing a white shirt?
a: Yes
q: does he have a helmet on?
a: Yes