Objects in the image:
category: car
category: stop sign
category: car
category: bus
category: bus
category: car
category: bus

Guessing-game dialogue about one of the objects:
q: is it in the left half of the picture?
a: No
q: is a vehicle?
a: No
q: is it the stop sign?
a: Yes
q: there is only one right?
a: Yes