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

Guessing-game dialogue about one of the objects:
q: is it on the player?
a: No
q: is it a bystander?
a: No
q: is it the ball?
a: No
q: is it one of the logos in the background?
a: No
q: is it the racket?
a: Yes