<http://schema.org/image_url>
"http://media.nola.com/politics/photo/richard-dale-wolfe-tentwofourjpg-853fc721e5646da1.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2011/04/wolfes_job_in_jeopardy_after_c.html>