<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/david-freesejpg-aff7c74578f4be89.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2013/10/david_freese_adds_to_mr_octobe.html>