Objects in the image:
category: bench
category: car
category: person
category: person
category: traffic light
category: person
category: bus
category: backpack
category: person
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: a traffic light?
a: No
q: a car?
a: Yes
q: blue colour?
a: Yes