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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: is on background?
a: No
q: It has something in hand?
a: No
q: right hand is up?
a: No