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

Guessing-game dialogue about one of the objects:
q: is a vehicle?
a: No
q: traffic light?
a: No
q: person ??
a: Yes
q: on the lift?
a: No
q: in a vehicle?
a: Yes