<http://schema.org/image_url>
"http://media.nola.com/food_impact/photo/caramel-apples1jpg-e36d9bb53bc33b20.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.nola.com/food/index.ssf/2013/10/todays_double_halloween_recipe_1.html>