<http://schema.org/image_url>
"http://media.al.com/business_impact/photo/thumbathletesjpeg-48e954de521ef4e8.jpeg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2013/04/hibbett_launches_mobile_websit.html>