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

Guessing-game dialogue about one of the objects:
q: is it a tennis player?
a: No
q: is it a spectator?
a: Yes
q: is the person wearing red?
a: No
q: is the person wearing blue?
a: Yes
q: is he sitting on the bench?
a: Yes