<http://schema.org/about>
"Levi's and Starbucks were among the signatories to a letter imploring Congress to renew the wind production tax credit that's set to expire."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/environmental-policy/congress-going-kill-wind-power-despite-pleas-levis-starbucks.html>