Objects in the image:
category: tennis racket
category: person
category: person
category: person
category: chair
category: chair
category: chair
category: sports ball
category: person
category: chair
category: person
category: person
category: person
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: Yes
q: is the person on the field?
a: Yes
q: is it Federer?
a: No
q: is she standing with her hands tied behind her back?
a: No