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

Guessing-game dialogue about one of the objects:
q: a person?
a: Yes
q: boy in blue in front?
a: No
q: the man behind him in white shirt and white shorts?
a: No
q: the guy on his right?
a: Yes
q: holding the racket?
a: Yes