Objects in the image:
category: traffic light
category: truck
category: traffic light
category: person
category: person
category: bus
category: bus
category: person
category: backpack
category: person
category: person
category: person
category: traffic light
category: truck

Guessing-game dialogue about one of the objects:
q: is it a bus?
a: No
q: is it a vehicle?
a: No
q: is it a person?
a: Yes
q: are they on the bus?
a: No
q: are they in red?
a: No
q: Are they in a white shirt?
a: No