<http://schema.org/about>
"It's a party for the planet and for just USD$25 you too can get in on the action at DC's First Annual Earth Ball. Mark your calendars for June 19, 2009 and be prepared to be amazed by all the green in the district. The event is"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/youre-invited-dcs-first-earth-ball.html>