<http://schema.org/image_url>
"http://media.nj.com/politics_impact/photo/screen-shot-2012-12-18-at-103034-ampng-fdae657201f04fa6.png"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nj.com/politics/index.ssf/2012/12/post_20.html>