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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: is it orange?
a: No
q: is it white?
a: Yes
q: is it parked near a dumpster?
a: No
q: is it a van?
a: Yes
q: is it carrying a ladder on top?
a: No
q: does it have something redish above it (like a light)?
a: Yes