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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a long board?
a: Yes
q: Is the guy in the purple jacket holding it?
a: No
q: Is the girl with the striped top riding it?
a: Yes