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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it on the person?
a: No
q: is it the ball?
a: No
q: is it on the court?
a: No
q: is it blue?
a: No
q: is it white?
a: Yes
q: is it a line?
a: No
q: is it shoes?
a: No
q: is it wristband?
a: No
q: is it shorts?
a: No
q: is it on his racket?
a: Yes