<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54c82de1d4b8d_-_pmx0506forens003_large.jpg>
<http://www.popularmechanics.com/technology/security/how-to/a630/2672751/>