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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the one riding the wave?
a: No
q: is he behind wave?
a: Yes
q: is he one of the 2 on the far left?
a: Yes
q: is he lying flat on the water?
a: Yes