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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the racket?
a: No
q: is someone wearing it?
a: N/A
q: is it a sign?
a: No
q: nobodies wearing it?
a: No
q: is it the ground?
a: No
q: is it the bleachers?
a: Yes