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

Guessing-game dialogue about one of the objects:
q: is it a boat?
a: Yes
q: does it have a mast for sailing?
a: Yes
q: does it have red on it's mast?
a: No
q: does it have yellow on the mast?
a: No
q: does it have blue on the mast?
a: No
q: dark blue o the mast?
a: No
q: is it a boat?
a: Yes
q: does it have a mast for sailing?
a: Yes
q: does it have a sailing mast?
a: Yes
q: is there a coloured sail at the bottom of the mast?
a: No
q: is the sail blue?
a: No
q: is it red?
a: No
q: is it in the top half of the picture?
a: No
q: is it in the bottom half?
a: No
q: is it in the middle?
a: Yes
q: is it the red one in the middle?
a: No
q: is it on the left side of the picture?
a: No
q: is it on the right side?
a: Yes
q: is it the one with the dark hull?
a: No
q: can you see the whole boat?
a: Yes