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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a surfboard?
a: Yes
q: Is the person standing on it?
a: No
q: Is it to the left of the person standing on it?
a: Yes
q: Is it above the waive?
a: No
q: Is it the white one on the left?
a: Yes