<http://schema.org/image_url>
"http://media.al.com/entertainment_impact/photo/big-bob-gibson-bar-b-q-original-white-sauce--10fd0b88ea0ba409.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2013/12/need_last-minute_gift_ideas_bu.html>