<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/160x160/54d11db716bfd_-_chainsaws_04_1008-md-24065810.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g233/4283685/>