A group of people work on the side of a large metal structure that is very blue on a cloudy day .
We doubt that the building is painted is a shade of blue that appears brighter on dull days .
There is a very good chance that the building is painted is a shade of blue that appears brighter on dull days .
We doubt that the building is painted is a shade of blue that appears brighter on dull days .
The building is painted is a shade of blue that appears brighter on dull days .