Objects in the image:
category: car
category: bus
category: car
category: truck
category: car
category: bus
category: car

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: Yes
q: is it bus/truck?
a: Yes
q: the bus on right?
a: No
q: is it truck in front?
a: No
q: the bus in far back?
a: Yes