Objects in the image:
category: person
category: tennis racket
category: person
category: person
category: person
category: person
category: person
category: bench
category: bottle
category: bench
category: person
category: person
category: person
category: backpack
category: bottle
category: bottle

Guessing-game dialogue about one of the objects:
q: Is a person?
a: Yes
q: Are they playing?
a: No
q: Are they on the left?
a: No
q: Are they on the other side of the fence?
a: Yes
q: Is it first from the right?
a: No
q: 2nd from right?
a: No
q: 3rd?   Behind the guy?
a: No
q: Guy wearing pink?
a: Yes