<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6b7fb282c7_-_mini-molten-chocolate-cakes-mocha-sauce-th2.jpg>
<http://www.delish.com/cooking/nutrition/news/a17284/dark-chocolate-improves-physical-endurance-study-ucsd/>