Objects in the image:
category: clock
category: tennis racket
category: sports ball
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: The ball?
a: No
q: Is it something he is wearing?
a: No
q: Is it on his upper body?
a: No
q: Is it his black shorts?
a: No
q: Is it something else that is on his lower body?
a: Yes
q: is it the ball?
a: No
q: is it the person?
a: No
q: is it a racquet?
a: No
q: is it being worn?
a: Yes
q: is it the watch?
a: Yes