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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a tree?
a: No
q: is a person holding it?
a: No
q: is a person wearing it?
a: No
q: is it a building?
a: No
q: is it the ground?
a: No
q: is it in the background?
a: No
q: is it on the ground?
a: Yes
q: is it in the left half of the picture?
a: Yes
q: is it in the bottom half of the picture?
a: Yes
q: is it white?
a: No
q: is it a ball?
a: Yes
q: is it the ball visually touching the man's leg?
a: No
q: is it the ball below the one touching the man's leg?
a: Yes