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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it with/on a person?
a: No
q: is it the timer?
a: No
q: is it in the back?
a: Yes
q: is it one of the advert boards?
a: No
q: is it the chair?
a: Yes