<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6628e528df_-_romaine-avocado-corn-salad-recipe-mslo0414-s2.jpg>
<http://www.delish.com/cooking/g1072/avocado-salad-recipes/>