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

Guessing-game dialogue about one of the objects:
q: Is it a Sign?
a: No
q: is it a building?
a: No
q: is it a vehicle?
a: Yes
q: is it white?
a: Yes