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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it in he water?
a: Yes
q: is it blue?
a: Yes
q: is it the first one?
a: No
q: is it the middle one?
a: No
q: is it the last one?
a: Yes