Objects in the image:
category: traffic light
category: car
category: car
category: traffic light
category: car
category: car
category: car
category: car
category: car
category: car
category: car
category: car
category: car
category: car
category: traffic light
category: car

Guessing-game dialogue about one of the objects:
q: is it mechanical?
a: N/A
q: is it red?
a: Yes
q: is it a sign?
a: Yes
q: does it light up?
a: Yes
q: is it for pedestrians?
a: Yes