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

Guessing-game dialogue about one of the objects:
q: a person?
a: Yes
q: tennis player?
a: Yes