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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it one of the 2 people playing?
a: No
q: is it someone in the stands?
a: Yes
q: is it the person behind the clock?
a: No
q: is it someone in the back row?
a: Yes
q: is it the person in the red shirt?
a: No
q: is it the person sitting with the person in the red shirt?
a: No
q: is it the person with the light blue pants?
a: Yes