<http://schema.org/image_url>
"http://media.al.com/business_impact/photo/marvin-engel-mugjpg-fc7e8d10a285fe11.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2013/04/marvin_engel_businessman_and_g.html>