<http://schema.org/image_url>
"http://media.al.com/alabamafootball_impact/photo/alabama-o-linejpg-57befeb53cbd8f27.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/alabamafootball/index.ssf/2012/11/tide_reclaims_its_third-down_m.html>