Objects in the image:
category: surfboard
category: person
category: surfboard
category: person
category: chair
category: person
category: surfboard
category: surfboard
category: surfboard
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: the  guy in water?
a: No
q: is he wearing black?
a: Yes
q: the guy at the back on our left?
a: No
q: Is it the surfer in the middle?
a: Yes
q: the one in middle among the three dressed in black?
a: Yes