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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a ball?
a: No
q: is it a tennis racket?
a: No
q: is it blue?
a: Yes
q: is it the floor?
a: No
q: is it the wall?
a: No
q: is it the umbrella?
a: Yes