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

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: is it on skate board?
a: No
q: is it sitting?
a: Yes
q: is it blue/green shirt guy?
a: No
q: is it wearing black?
a: No
q: is it wearing white shirt?
a: Yes
q: next to blue/green shirt?
a: No
q: sitting in the back row?
a: Yes