<http://schema.org/image_url>
"http://media.nola.com/food_impact/photo/stuffed-mirlitonjpg-3a698eb7aa2c921e.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/food/index.ssf/2012/10/heirloom_thanksgiving_recipes.html>