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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the tennis player?
a: No
q: is it the 1st person on the left?
a: Yes