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

Guessing-game dialogue about one of the objects:
q: is it a ball?
a: Yes
q: is it the ball the man is playing with?
a: No
q: is it on the background?
a: Yes
q: is it the ball right behind the man, the ball half visible?
a: Yes