<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/11/320x320/54fdf6c26c86b-small-garden-green-salad-mbd107959-sq-xlarge.jpg>
<http://www.delish.com/cooking/g1072/avocado-salad-recipes/>