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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: skateboard ? .?
a: No
q: is it something someone is wearing?
a: Yes
q: is it a hat?
a: No
q: is it a bag?
a: Yes
q: skateboarder's bag?
a: Yes