<http://schema.org/about>
"Green roofs continue to change  architecture, as architects blend buildings into the landscape and use the roofs as architectural elements, often to hide the building from view. The Vilhelmsro school in Denmark \"focuses on nature and"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/green-roofs-are-changing-architecture-bigs-new-school-in-denmark.html>