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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the tennis racket?
a: No
q: is it the tennis court?
a: No
q: is it the blue wall?
a: No
q: is it the bench?
a: Yes