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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a vehicle?
a: No
q: Is it a traffic light?
a: Yes
q: Is it the green one over the back of the bus?
a: Yes