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

Guessing-game dialogue about one of the objects:
q: person ??
a: No
q: ball ??
a: No
q: Is it a racket?
a: Yes
q: is it a person?
a: No
q: is it a object?
a: Yes
q: is it in the hands of a person?
a: Yes
q: is it green colour ball?
a: No
q: is it a bat?
a: Yes
q: the bat is in the right hand of a person?
a: No
q: the bat is in the left hand of a person?
a: No
q: the man having bat at tha back of the net?
a: Yes