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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: is it touching water?
a: Yes
q: a ski?
a: No
q: held by the guy on the right?
a: Yes
q: the entire thing?
a: Yes