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

Guessing-game dialogue about one of the objects:
q: person ..?
a: No
q: boat ..?
a: Yes
q: in the background?
a: Yes
q: the one with black line to the extreme back side?
a: No