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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: in the water?
a: No
q: purple shirt?
a: No
q: black shirt?
a: N/A
q: head on the left above the roof?
a: No
q: gray shirt?
a: N/A
q: first person on the right edge of picture?
a: No
q: one of the two middle ones?
a: Yes
q: the left one?
a: Yes