Objects in the image:
category: person
category: person
category: skateboard
category: person
category: car
category: person
category: person
category: car
category: person
category: cell phone
category: person
category: skateboard
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a skateboard?
a: No
q: is it a cellphone?
a: No
q: is a person wearing it?
a: No
q: is it a car?
a: Yes
q: is it under the guy doing the trick?
a: No