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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: is he playing?
a: No
q: in the crowd?
a: Yes
q: on the left side?
a: No
q: on the right?
a: Yes
q: 1st row ??
a: Yes
q: Is it wearing a grey t-shirt and white cap?
a: No
q: wearing pinkish white?
a: No
q: wearing white and holding a camera?
a: Yes