<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x430/54cabe025f8e9_-_superbowl_slide_07_0211-xl.jpg>
<http://www.popularmechanics.com/adventure/sports/g458/players-safety-concerns-at-super-bowl-xlv/>