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

Guessing-game dialogue about one of the objects:
q: a board?
a: No
q: a person?
a: Yes
q: the surf boarder?
a: No
q: in the crowd?
a: Yes
q: in yellow?
a: No
q: in  red?
a: No
q: in black?
a: Yes
q: at left?
a: Yes
q: the fourth person?
a: No
q: the seventh person?
a: Yes
q: behind the pole?
a: Yes