Objects in the image:
category: person
category: tennis racket
category: person
category: sports ball
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it the tennis ball?
a: No
q: is it a person?
a: Yes
q: is it the girl hitting the ball?
a: No
q: is it the guy in the purple shirt with a red stripe on the sleeve?
a: No
q: is it the person next to him?
a: No
q: is it the guy with his hand on his hip?
a: No
q: is it someone sitting behind the bars?
a: No