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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it bat?
a: Yes
q: is it front one?
a: No
q: is the back one?
a: Yes