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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it bus?
a: Yes
q: Is it the big double-decker bus?
a: No