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: umbrella
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 a person?
a: Yes
q: are they playing tennis?
a: No
q: is the person sitting on the court?
a: No
q: is it the person on top of the right players head?
a: No
q: is the person near the previously mentioned person?
a: No
q: they are sitting in the chairs behind the left player?
a: Yes
q: is it right behind or to the right of the player in the back?
a: Yes
q: are they right behind?
a: No
q: the group with 8 people?
a: No
q: the group with 3 people?
a: Yes
q: the left of the three?
a: No
q: is it middle?
a: No