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

Guessing-game dialogue about one of the objects:
q: is it human?
a: Yes
q: is it the player?
a: Yes
q: is it the player bending his knee and looking at the ball?
a: Yes