Objects in the image:
category: person
category: traffic light
category: traffic light
category: person
category: person
category: person
category: person
category: car
category: person
category: person
category: person
category: fire hydrant
category: person
category: person
category: person
category: bus
category: person

Guessing-game dialogue about one of the objects:
q: Is the object a vehicle?
a: Yes
q: Is the vehicle gray?
a: Yes