Objects in the image:
category: person
category: skateboard
category: person
category: skateboard
category: person
category: person
category: person
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 person?
a: Yes
q: is it in air in front in black?
a: No
q: is it on left?
a: Yes
q: is it in red?
a: No
q: Is it one of the three standing together?
a: No
q: is it in yellow?
a: Yes