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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: in yellow top?
a: No
q: in red cap?
a: Yes