<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54c801431b9f2_-_tb_0010hihwab-1-de.jpg>
<http://www.popularmechanics.com/home/interior-projects/how-to/a149/1275121/>