Objects in the image:
category: person
category: person
category: person
category: person
category: person
category: person
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 person?
a: Yes
q: the one playing?
a: No
q: is it to players right?
a: Yes
q: is person in front row?
a: Yes
q: is it woman in red shirt?
a: No
q: is person in that row?
a: No
q: is it one in white shirt in right in previous row?
a: Yes