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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it one of the two playing tennis?
a: Yes
q: is it the one in the black shirt?
a: No