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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is this a ship/boat?
a: No
q: Is this sporting equipment?
a: No
q: Is this clothing?
a: No
q: Is this water?
a: Yes
q: Is it a particular patch of water?
a: Yes
q: Is it the spray in front of the person who appears largest in the foreground?
a: No
q: Is it on the left side of the picture only?
a: No
q: Is it on the right side of the picture only?
a: Yes
q: Can you tell whether it is a wave?
a: Yes
q: Is it a wave?
a: No
q: Is it a relatively smooth patch near the paraglider's hand?
a: No
q: Is it in the bottom half of the picture?
a: No
q: Is it nearest the background person that is the farthest to the right of the frame?
a: No
q: Is it nearest the background person that is farthest to the left of the frame?
a: Yes
q: Is it above that person?
a: No
q: Is it between that person and the foreground person?
a: No
q: Is it to the left of that person?
a: No
q: Is it to the left of the middle background person, who appears just below the boat on the horizon?
a: Yes
q: And it is to the right of the leftmost background person?
a: Yes
q: Is it closer to shore than the leftmost foreground person?
a: Yes