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

Guessing-game dialogue about one of the objects:
q: is it the boat?
a: No
q: is it car?
a: Yes
q: is it moving towards me?
a: Yes
q: is it bus?
a: No
q: is it car?
a: N/A
q: is it boat?
a: No
q: is it on the bridge?
a: Yes
q: is it close to the bottom?
a: No
q: is it before this arch?
a: Yes