Objects in the image:
category: bus
category: person
category: train
category: bus
category: person
category: handbag
category: person
category: car
category: car
category: person
category: car
category: truck
category: person

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: one on road in front of bus?
a: No
q: the driver of bus/tram?
a: No
q: Is it the one between the two buses at the right?
a: No
q: one in car?
a: No
q: someone inside tram/train?
a: Yes
q: Is it under the "Castro" sign?
a: No
q: right of him?
a: Yes