<http://schema.org/about>
"The people of Harriman, Tenn., woke the morning of Dec. 23, 2008, to find their community awash in a billion gallons of toxic coal sludge."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/energy/stories/scenes-from-the-tva-coal-disaster>