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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: is it one of the buses?
a: No
q: is it the white car on the bridge?
a: No
q: the red one at the left edge of the photo?
a: No
q: the silver one at the right edge?
a: Yes