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

Guessing-game dialogue about one of the objects:
q: is it on the boat?
a: No
q: is it the bridge?
a: No
q: in the background?
a: No
q: the blue poles?
a: No
q: is it the boat?
a: Yes