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

Guessing-game dialogue about one of the objects:
q: is it a traffic light?
a: Yes
q: the light is facing towards us?
a: No
q: in the right side?
a: Yes
q: in the top?
a: No
q: in the bottom?
a: No
q: the most right side one?
a: N/A
q: facing towards the truck?
a: No
q: light is on?
a: Yes
q: one light only?
a: Yes
q: the red light?
a: No
q: green light?
a: Yes
q: the middle one traffic light?
a: Yes