<http://schema.org/about>
"Faroe Islands, Near Denmark\n\nGreen roofs are not new; they have been used for thousands of years because they helped insulate, thrived in the sun instead of rotting, and other than the increased structure, they were cheap as, well, the dirt that they were"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/sustainable-product-design/green-roofs-are-changing-architecture-and-planning/page/2/>