<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x263/54c8810f1087e_-_super-mario-galaxy-600-lgn.jpg>
<http://www.popularmechanics.com/technology/gadgets/g71/4219383/>