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

Guessing-game dialogue about one of the objects:
q: is a ball?
a: No
q: is a person?
a: Yes
q: is player?
a: No
q: is blue shirt in first row on left?
a: No
q: 2 seats left of blue shirt?
a: No
q: 3 seats left of blue shirt?
a: No
q: is person in black above player?
a: Yes
q: is it player?
a: No
q: is it a person in black uniform above player in background?
a: Yes