<http://schema.org/image_url>
"http://media.nola.com/politics/photo/alliance-for-good-gov-logo-485757a47434f3e0.png"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2014/02/alliance_for_good_government_t_3.html>