<http://schema.org/image_url>
"http://media.nola.com/politics/photo/mitch-landrieu-tropical-storm-karenjpg-40ae0edb8879ee87.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2013/10/mayor_landrieu_gives_updates_o.html>