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

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: No
q: traffic signal?
a: Yes
q: Is it the whole or part of the signal on the left?
a: No
q: one right of road?
a: Yes
q: the whole signal?
a: Yes
q: green light only?
a: No