<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54ca5e6e4107a_-_semi-trucks-01-0812-lgn.jpg>
<http://www.popularmechanics.com/cars/trucks/g116/10-things-you-didnt-know-about-semi-trucks/>