<http://schema.org/about>
"In his first speech as the head of the Worldwide Wildlife Fund UK, Prince Charles warned of a mass human extinction if dramatic steps aren't taken to reduce the world's consumption of natural resources. According to an article in"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/prince-charles-warns-of-human-extinction.html>