<http://schema.org/image_url>
"http://media.al.com/business_impact/photo/dept-of-revenue-buildingjpg-ab1be7edf4416c7d.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2014/07/birmingham_may_sell_historic_b.html>