Objects in the image:
category: car
category: person
category: person
category: person
category: person
category: person
category: person
category: traffic light
category: person
category: bus
category: person
category: car
category: traffic light
category: person
category: car
category: person
category: bicycle
category: traffic light
category: person

Guessing-game dialogue about one of the objects:
q: Is it the train?
a: No
q: is it a person?
a: No
q: is it a building?
a: No
q: is it a automobile?
a: Yes
q: is it black?
a: No
q: is it behind the bus/train/trolley thing?
a: No
q: can you see the whole thing?
a: No
q: is it on the left?
a: Yes
q: behind the black car?
a: Yes