Objects in the image:
category: umbrella
category: person
category: chair
category: person
category: chair
category: chair
category: chair
category: tennis racket
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: chair
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it on the court?
a: Yes
q: is it on the left side of the net?
a: No
q: is it one the right side?
a: Yes
q: is it in between the referee and the male tennis player?
a: No
q: is it to the right of the male tennis player?
a: No
q: but the item can be located on the right side of the net?
a: Yes
q: is it the net?
a: No
q: is it one of the chairs?
a: No
q: is it the pink container on the right side of the picture?
a: No
q: is it the yellow container?
a: No
q: is it the table?
a: No
q: is it near the referee's chair?
a: No
q: is it near the tennis player?
a: Yes
q: is the tennis player holding/wearing it?
a: Yes
q: is it his racket?
a: Yes