Objects in the image:
category: boat
category: person
category: bicycle
category: bicycle
category: person
category: person
category: boat

Guessing-game dialogue about one of the objects:
q: is it a bike?
a: Yes
q: Are you a confederate of the researchers?
a: No
q: Is it both bikes?
a: No
q: Is it left bike?
a: Yes
q: Is it the whole bike?
a: Yes