Objects in the image:
category: fire hydrant
category: car
category: person
category: bicycle
category: car
category: bicycle
category: car
category: car
category: person
category: bicycle
category: truck
category: bus
category: person

Guessing-game dialogue about one of the objects:
q: is a vehicle?
a: Yes
q: a bicycle?
a: No
q: a car?
a: Yes
q: in front among three?
a: No
q: at the back red?
a: Yes