Objects in the image:
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: truck
category: truck
category: person
category: bus
category: person

Guessing-game dialogue about one of the objects:
q: is it the person in the bus?
a: No
q: is it the bus in front?
a: No
q: is it alive?
a: No
q: Is it the vehicle behind the bus?
a: Yes