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

Guessing-game dialogue about one of the objects:
q: it is someone?
a: No
q: a racquet?
a: Yes
q: one who is holding?
a: No
q: the one on the left to the bench?
a: Yes