<http://schema.org/image_url>
"http://media.nola.com/food_impact/photo/-a870385ed3e6f93a.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/food/index.ssf/2013/10/todays_recipe_from_our_files_b_4.html>