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

Guessing-game dialogue about one of the objects:
q: is a cone?
a: No
q: is a signal?
a: No
q: is a vehicle?
a: Yes
q: one of the big trucks?
a: Yes
q: the left end one?
a: No
q: the middle one?
a: Yes