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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it racket?
a: Yes
q: is it in left?
a: Yes
q: is it in front?
a: No
q: is n middle?
a: Yes