<http://schema.org/image_url>
"http://media.nola.com/politics/photo/percy-hebert-building-laplacejpg-0c551befdf9f070e.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2013/11/st_john_parish_will_join_push.html>