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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: on the yellow surfboard?
a: No
q: Do they have on blue?
a: Yes
q: And they are the person most towards the right?
a: Yes