<http://schema.org/image_url>
"http://media.nola.com/politics/photo/solyndra-solar-panel-factoryjpg-e82e62bd368ead5f.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2012/02/rep_steve_scalise_opposes_rest.html>