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

Guessing-game dialogue about one of the objects:
q: is it alive?
a: No
q: Is it floating on the air?
a: No
q: Is the net?
a: No
q: Is it one of the chairs?
a: No
q: Is it the towels?
a: No
q: Is it inside the court?
a: Yes
q: is it the racket?
a: Yes
q: Is it the racket shadow?
a: No
q: is it the actual racket on the players hand?
a: Yes