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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: on a skateboard?
a: No
q: in the back?
a: Yes
q: wearing black shirt?
a: No
q: yellow shirt??
a: No
q: white shorts?
a: No
q: sitting down?
a: Yes
q: blue shirt?
a: Yes