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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is the person on a surfboard?
a: Yes
q: standing on a surfboard?
a: Yes
q: the guy near the front of the photo on the white board?
a: Yes