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

Guessing-game dialogue about one of the objects:
q: is it a ball?
a: Yes
q: is it big?
a: No
q: is it on floor?
a: No
q: is it on wall?
a: No
q: is it on the upper part of picture?
a: Yes
q: is it above the top window partition?
a: No
q: between the top and middle partitions?
a: Yes
q: is it within the left column?
a: Yes
q: Is the one of the four on the top?
a: Yes
q: is it the left one?
a: Yes