Objects in the image:
category: person
category: person
category: person
category: bus
category: person
category: bus
category: person
category: person
category: person
category: car
category: car
category: person
category: bus
category: backpack
category: person

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: Yes
q: is it yellow bus?
a: No
q: Is it the red double decker bus?
a: Yes