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

Guessing-game dialogue about one of the objects:
q: is it human?
a: No
q: is it tennis related?
a: No
q: is it in the background?
a: Yes
q: is it a poster?
a: No
q: is it on that back thing behind the men?
a: Yes
q: is it to the left of them?
a: Yes