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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is the person wearing blue?
a: No
q: Is the person serving a ball?
a: Yes
q: do they have blue shoes?
a: Yes