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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a surfboard?
a: Yes
q: is it in the water?
a: No
q: is the guy carrying it on the left?
a: No
q: is it the guy carrying it on right?
a: No
q: is it the one you only see the tip?
a: Yes