<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/kogerjpg-d78300aa07c2b4de.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2013/04/auburn_hopes_daniel_koger_is_a.html>