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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: on the stands?
a: No
q: is she playing?
a: Yes