<http://schema.org/image_url>
"http://media.al.com/opinion/photo/supreme-courtjpg-2b4291eae24e1c2a.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/news/index.ssf/2014/07/with_approval_ratings_for_cong.html>