<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/augie-grilljpg-211dfcb01eb5ea70.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2013/05/racing_roundup_johanna_long_jo.html>