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: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: on the top of bridge?
a: No
q: is in the water?
a: Yes
q: one who swims in the water?
a: No
q: is he holding a yellow board?
a: No
q: a white board?
a: No
q: is he is sitting?
a: Yes
q: is he wears a cap?
a: No