Objects in the image:
category: car
category: bus
category: truck
category: stop sign
category: person
category: bus

Guessing-game dialogue about one of the objects:
q: is a vehicle?
a: No
q: is a sign board?
a: No
q: is a human?
a: No
q: is the bridge?
a: No
q: is it any board?
a: Yes
q: Is it the Public Parking board?
a: No
q: is the green board?
a: No