<http://schema.org/image_url>
"http://media.al.com/news_impact/photo/sm-6-onlinejpg-b419138b886bbe09.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/news/index.ssf/2014/07/raytheons_alabama-made_standar.html>