<http://schema.org/image_url>
"http://media.al.com/news_mobile_impact/photo/i-10-bridgejpg-c8464a5ea6782ed2.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2014/07/governor_bentley_talks_i-10_br.html>