<http://schema.org/about>
"Despite the heavy pollution, 57 million people depend on the Yamuna's sewage-filled waters for washing, drinking, religious ceremonies and waste disposal."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/polluted-yamuna-river-foams-at-the-mouth>