Objects in the image:
category: car
category: fire hydrant
category: person
category: person
category: person
category: person
category: person
category: traffic light
category: person
category: person
category: traffic light

Guessing-game dialogue about one of the objects:
q: is it in white and blue color?
a: No
q: is it a person?
a: No
q: is it a board or sign?
a: No
q: is it a car?
a: No
q: is it in green color?
a: No
q: is it a signal?
a: Yes
q: is it in black color?
a: Yes