Objects in the image:
category: person
category: person
category: person
category: sports ball
category: person
category: tennis racket
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 person?
a: Yes
q: is he playing?
a: No
q: is he wear sun glasses?
a: Yes
q: is he wear white tshirt?
a: No
q: is he wear brown shorts?
a: Yes