<http://schema.org/image_url>
"http://media.nola.com/politics/photo/iberville-public-housing-aerialjpg-e81b20be4737d9c0.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/politics/index.ssf/2010/09/iberville_public_housing_redev.html>