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

Guessing-game dialogue about one of the objects:
q: Is it a skateboard?
a: Yes
q: Is it black?
a: No
q: Can you see its bottom?
a: No
q: Are its front wheels up in the air?
a: Yes