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

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