<http://schema.org/about>
"The hills are alive with lush greenery \u2014 but so are many rooftops. Green or living rooftops, long popular in Europe, are becoming common with both private and"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/your-home/remodeling-design/photos/8-lush-green-rooftops-from-around-the-globe/look-up>