<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb0779813ae_-_safer-super-bowls-04-0113-lgn.jpg>
<http://www.popularmechanics.com/adventure/sports/g1070/crash-testing-helmets-to-make-super-bowls-safer/>