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

Guessing-game dialogue about one of the objects:
q: IS it a person?
a: Yes
q: Is the person in line?
a: No
q: Are they in the background?
a: Yes
q: Are they on the other court far from the line of kids?
a: Yes