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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a tennis ball?
a: Yes
q: is it in the rack at the bottom?
a: N/A
q: is it in the air?
a: No
q: is it one of the 3 tennis balls in the bottom right corner of the rack?
a: No
q: Is it one of the three to the left of them?
a: Yes
q: IS it the first one to the left?
a: Yes