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

Guessing-game dialogue about one of the objects:
q: a person?
a: No
q: a racket?
a: No
q: a chair?
a: Yes
q: is a person sitting on it?
a: No
q: Is it green?
a: Yes
q: the one on our right of woman in grey?
a: No
q: the one behind that chair on last row?
a: No
q: is it next to our left of man in grey tee?
a: Yes