<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/11/54fdf2f51be82-grilled-chicken-caesar-salad-recipe-5pfyel-eqevkn-lg.jpg>
<http://www.delish.com/cooking/g2072/caesar-salad/>