Objects in the image:
category: truck
category: truck
category: traffic light
category: bus
category: traffic light
category: person
category: traffic light
category: bus
category: fire hydrant
category: traffic light
category: traffic light

Guessing-game dialogue about one of the objects:
q: is it bus?
a: No
q: is it truck?
a: No
q: is it vehicle?
a: No
q: is it traffic signal?
a: Yes
q: is it on left side?
a: Yes