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

Guessing-game dialogue about one of the objects:
q: it is a board?
a: No
q: a person?
a: Yes
q: who is standing?
a: Yes
q: in green shirt?
a: No
q: in white?
a: No
q: one of the two more on left side far away from us?
a: No
q: someone on right side?
a: No
q: it is someone close to a trolley?
a: Yes