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: No
q: is it a surfboard?
a: Yes
q: is someone standing on it?
a: Yes
q: is someone lying on it?
a: No
q: is it partially out of the water?
a: N/A
q: is it on the left side of the picture?
a: No