<http://schema.org/image_url>
"http://media.masslive.com/sports_impact/photo/tcu-superfrogjpg-9d00eb84b34c5db7.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.masslive.com/sports/index.ssf/2013/09/tcu_forgets_to_bring_the_masco.html>