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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a vehicle?
a: Yes
q: is it a bus?
a: N/A
q: is it green?
a: No
q: is it red?
a: Yes