<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/-tennessee-football-7a3454a8fc1f4c0d.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2014/08/tennessee_names_justin_worley.html>