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

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