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 it a person?
a: No
q: is someone wearing it?
a: No
q: is someone holding it?
a: No
q: is it on the bench?
a: No
q: is it any of the coolers?
a: No
q: is it a drink?
a: No
q: is it near the bench?
a: No