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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it something one of the people are holding?
a: Yes
q: which person is holding it the boy farthest from us?
a: Yes
q: is it his racket?
a: Yes