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

Guessing-game dialogue about one of the objects:
q: is it a human?
a: Yes
q: Is he wearing  a blue combi?
a: No
q: Is it a green combi?
a: No
q: is he one of the 3 in black in the left?
a: No
q: the man in black on the right?
a: Yes