Objects in the image:
category: truck
category: traffic light
category: stop sign
category: traffic light
category: traffic light
category: truck
category: car
category: car
category: car
category: car
category: stop sign
category: traffic light

Guessing-game dialogue about one of the objects:
q: is it signal?
a: Yes
q: is it front one?
a: N/A
q: is it in middle?
a: No
q: is in right?
a: No
q: is in yellow?
a: No
q: is it sign board?
a: Yes
q: is in right?
a: No
q: is in left?
a: Yes