<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/160x266/54cfd55359718_-_dck-022_300x500_dickies_popmechanics_flipbook_slide1_r31.jpg>
<http://www.popularmechanics.com/adventure/outdoors/g1241/the-science-of-the-perfect-golf-shot/>