Objects in the image:
category: person
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 in front?
a: N/A
q: is it person?
a: Yes
q: is in white playing?
a: No
q: is it in left?
a: No
q: is in right?
a: Yes
q: is in 1st row from front?
a: Yes
q: is in rightmost blue?
a: No
q: is the girl near to him?
a: No
q: i in green with yellow cap?
a: No
q: is it near to that green?
a: Yes