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

Guessing-game dialogue about one of the objects:
q: is it human?
a: Yes
q: is it in the background?
a: Yes
q: is it a spectator?
a: No
q: is it one of the volunteers?
a: Yes
q: is part of its head hidden from view?
a: Yes
q: is it wearing a dark blue jersey?
a: Yes