<http://schema.org/image_url>
"http://media.al.com/alabamafootball_impact/photo/saban-signing-dayjpg-a07349401fc5b33a.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/alabamafootball/index.ssf/2013/02/scarbinsky_four_arrested_alaba.html>