<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54caf26d2f213_-_horseshoes-0812-smn.jpg>
<http://www.popularmechanics.com/adventure/outdoors/a7993/how-to-lay-out-a-badminton-court-11446205/>