Objects in the image:
category: traffic light
category: fire hydrant
category: parking meter
category: person
category: person
category: traffic light
category: truck
category: fire hydrant
category: traffic light
category: bus

Guessing-game dialogue about one of the objects:
q: does it have wheels?
a: No
q: does it light?
a: No
q: is it white?
a: No
q: is it yellow?
a: No
q: is it a building?
a: No
q: is it a tree?
a: No
q: is it a sign?
a: No
q: is it grey?
a: Yes
q: is everything on top of it?
a: Yes