Objects in the image:
category: person
category: car
category: person
category: person
category: sports ball
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: a person?
a: No
q: the ball?
a: No
q: the net?
a: No
q: an item of clothing?
a: No
q: a tree?
a: No
q: a car in the background?
a: Yes
q: is it black?
a: Yes
q: i really only see one car, to the right of the knee of the girl in white. is it that one?
a: Yes