<http://schema.org/image_url>
"http://media.al.com/alphotos/photo/2012/11/11888609-large.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/alabamafootball/index.ssf/2012/11/yeldon_out_of_contact_as_tide.html>