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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he riding a bicycle?
a: Yes