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: Man in water on yellow board?
a: No
q: Is it one of the four with the boards in their hands?
a: Yes
q: Is it one of the two in the middle?
a: No
q: Is it guy on the far left?
a: Yes