<http://schema.org/image_url>
"http://media.nola.com/politics/photo/new-orleans-public-belt-railroad-logojpg-51072722a00ee2fe.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2011/06/rate_increase_at_new_orleans_p.html>