Objects in the image:
category: boat
category: backpack
category: person
category: boat
category: boat
category: boat
category: person
category: boat
category: person
category: truck

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: truck ??
a: No
q: boat ??
a: Yes
q: the one carrying the trucks?
a: No
q: the little blue one to the right?
a: Yes