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

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: is it a player?
a: No
q: is it sitting?
a: Yes
q: inside the field?
a: Yes
q: the guy on a green chair?
a: Yes