<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cab70f4179d_-_mb_porsche_11_1110-xl-84073552.jpg>
<http://www.popularmechanics.com/science/g435/how-to-engineer-a-porsche-to-drive-backwards/>