<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/NewsArticle>
<http://gigaom.com/2008/02/15/pge-tries-again-on-geothermal-meets-clean-energy-goal/pge-tries-again-on-geothermal-meets-clean-energy-goal-2/>