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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a net?
a: No
q: is it a ball?
a: No
q: is it a chair?
a: Yes