<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://esq.h-cdn.co/assets/cm/15/05/54ce0ec5bc0ee_-_esq-stem-cells-01-0413-th2.jpg>
<http://www.esquire.com/news-politics/a20599/stem-cells-research-politics-0413/>