Objects in the image:
category: person
category: person
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: Is it the instructor?
a: No
q: Is it one of the two in front?
a: N/A
q: Is it one of the two on the left?
a: No
q: Is it the one at the rear end of the board?
a: No
q: Is it the one with the blue and orange flipper?
a: Yes