Objects in the image:
category: person
category: skateboard
category: person
category: person
category: skateboard
category: person
category: person
category: skateboard
category: person
category: person
category: skateboard
category: person
category: backpack
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 tree?
a: No
q: is it a skateboard?
a: Yes
q: is it the skateboard that is closer to us?
a: No
q: is it the skate board that guy in light blue has?
a: No
q: can you see that skate board really good?
a: No
q: is someone holding the skateboard?
a: No
q: is the person riding the skateboard to the left?
a: Yes