<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x320/54cb61bae35b5_-_golf-gadgets-01-0513-de.jpg>
<http://www.popularmechanics.com/adventure/sports/g1734/8-golf-gadgets-to-improve-your-game/>