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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: big white truck?
a: No
q: is it in the same lane as it?
a: Yes
q: one directly behind it?
a: No
q: one directly in front?
a: No
q: next one up?
a: Yes