Objects in the image:
category: tennis racket
category: person
category: chair
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: it is someone?
a: Yes
q: a player?
a: No
q: Is it a ballkid?
a: No
q: a referee?
a: No
q: Is it someone in the stands?
a: No
q: a cameraman?
a: Yes
q: on left?
a: No
q: behind the radar?
a: Yes