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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it something you wear?
a: No
q: is it rideable?
a: Yes
q: is it green/black?
a: No
q: is someone sitting on it?
a: Yes