Objects in the image:
category: person
category: person
category: boat
category: person
category: boat
category: person
category: boat
category: person
category: boat
category: person
category: person
category: person
category: person
category: bird
category: boat
category: boat
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: one in white standing on boat?
a: No
q: Is it the person in the boat?
a: No
q: is it man in left boat sitting at leftmost edge?
a: No
q: Is it the man sitting in the middle in the bright white shirt?
a: No
q: is the person left of that man?
a: Yes
q: is it one of the 2 right of that man?
a: Yes
q: woman in blue closest to him at left?
a: No
q: are there 2 persons just left of her?
a: No
q: Is it the person just left of her?
a: N/A
q: is  the person closer to right edge of boat?
a: Yes
q: is it one in bright green clothes?
a: No