Objects in the image:
category: car
category: car
category: truck
category: car
category: fire hydrant
category: traffic light
category: traffic light
category: car
category: car
category: truck
category: traffic light
category: traffic light

Guessing-game dialogue about one of the objects:
q: is that vehicle?
a: No
q: is that signal light?
a: Yes
q: is that one of four lights in center?
a: No
q: is that in front line?
a: Yes
q: is that have red color light?
a: Yes