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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: are they in the water?
a: No
q: are they holding a surfboard?
a: Yes
q: are they on the left?
a: No
q: are they in the middle?
a: Yes
q: are they in the middle of 2 people holding surfboards?
a: Yes