<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f6b1523fb1f_-_barrio-starr-old-jorge-margarita-del0413-mdn.jpg>
<http://www.delish.com/holiday-recipes/cinco-de-mayo/g1599/best-margaritas/>