<http://schema.org/image_url>
"http://media.nj.com/politics_impact/photo/prieto--saponejpg-eb7807d38aaffaaf.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nj.com/politics/index.ssf/2013/04/budget_panel_urges_christie_ad.html>