<http://schema.org/about>
"Perhaps we have to rethink the term \"green roof\", because in many climates it might be mostly other colours, like this one in Greece by Deca Architecture and shown on Designboom."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/almost-underground-house-blends-in-with-landscape.html>