Objects in the image:
category: truck
category: truck
category: bus
category: boat
category: boat
category: boat
category: boat
category: truck
category: boat
category: truck
category: boat
category: boat
category: boat
category: boat
category: boat
category: boat
category: truck
category: truck
category: boat
category: boat

Guessing-game dialogue about one of the objects:
q: is it a boat?
a: Yes
q: is it on water surface?
a: No
q: is it grey color?
a: No
q: is it alone?
a: No
q: Is it in the right one?
a: No