<http://schema.org/image_url>
"http://media.nola.com/politics/photo/harry-reidjpg-425318a2e5ba26a7.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2013/10/senate_leaders_remarks_on_canc.html>