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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it surfboard?
a: Yes
q: is it on which guy is on all fours?
a: No
q: is it one guy in the back is on?
a: Yes