<http://schema.org/image_url>
"http://media.al.com/business_impact/photo/credit-cardsjpg-51c101f6cef3e72e.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2014/04/stop_doing_these_things_that_a.html>