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

Guessing-game dialogue about one of the objects:
q: is it a tennis ball?
a: No
q: is it a person?
a: No
q: is it a lamp?
a: No
q: is it a net?
a: No
q: is it clothes?
a: No
q: is it the black net in the back?
a: No
q: is it the blue tennis court?
a: No
q: is it the fence?
a: No
q: is it the green part of the tennis court?
a: No
q: is it the tennis racquet?
a: Yes