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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: in the water?
a: No
q: is he holding a surfboard?
a: Yes
q: is he standing right next to the water?
a: No
q: is he on the left side at the back?
a: N/A