Objects in the image:
category: boat
category: boat
category: boat
category: boat

Guessing-game dialogue about one of the objects:
q: is it on the boat?
a: No
q: is it a boat?
a: Yes
q: nearest boat on the picture?
a: No
q: is it the second nearest?
a: No
q: middle boat on the picture?
a: No
q: the fourth one?
a: Yes