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

Guessing-game dialogue about one of the objects:
q: is it the guy playing tennis?
a: No
q: is it a person?
a: Yes
q: are they taking a picture?
a: No
q: the guy in the front row wearing a blue shirt?
a: Yes