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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: a vehicle?
a: Yes
q: of white color?
a: Yes
q: a truck?
a: Yes
q: the front one?
a: Yes