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

Guessing-game dialogue about one of the objects:
q: IS IT THE BALL?
a: No
q: IS IT A PERSON?
a: Yes
q: IS THE MAN PLAYING TENNIS IN THE RED SHIRT?
a: No
q: Is it the person in blue by the white box that says Rio?
a: No
q: ARE THEY WEARING RED?
a: No
q: ARE THEY SITTING ON THE COURT?
a: No