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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: is it that bus?
a: Yes