<http://schema.org/alternativeHeadline>
"In his State of the Union speech, Obama unveils plans to expand U.S. oil and gas production, but vows not to 'walk away from the promise of clean energy.'"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/politics/blogs/sotu-2012-obama-touts-old-new-energy>