<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/320x320/54f79db3b53ee_-_1-oils-in-jars-lgn-86998178.jpg>
<http://www.womansday.com/food-recipes/food-drinks/g871/how-to-make-dressing/>