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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Is he walking on beach without a surfboard?
a: No
q: Are they holding a surfboard?
a: N/A
q: Are they on the left side of the picture in the waves?
a: Yes