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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the racquet?
a: No
q: is it a person?
a: No
q: is it a racquet?
a: No
q: is it a chair?
a: No
q: is it something any person is wearing?
a: No
q: is it something any person is holding?
a: No
q: is it the bench?
a: Yes
q: is it just behind the player?
a: Yes