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

Guessing-game dialogue about one of the objects:
q: is it a bus?
a: No
q: is it a person?
a: No
q: is it a car?
a: No
q: is it part of a building?
a: No
q: is it a lamp post?
a: No
q: is it a part of the street?
a: No
q: is it yellow and white?
a: No
q: is it a street signal?
a: Yes
q: is it the leftmost one in the picture?
a: Yes
q: is there a purple part of the bus right behind it?
a: Yes