<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/cm/14/28/640x360/53a04574a2698_-_tacosvspupusas-xl.jpg>
<http://www.cosmopolitan.com/food-cocktails/how-to/a3828/tacos-vs-pupusas/?click=rel>