<http://schema.org/about>
"Green donors claim they're dumping Obama after he announced he'll 'fast track' the Keystone XL tar sands pipeline."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/environmental-policy/green-donors-withold-funds-over-obamas-lack-climate-leadership-keystone-xl-approval.html>