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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: a tennis ball?
a: No
q: a tennis racket?
a: Yes