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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the board he is standing on?
a: No
q: is it the stick/oar he is using?
a: No
q: is it his watch?
a: No
q: is it his shorts?
a: No
q: is it the building/ship in the back of the picture?
a: Yes