<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54caf992028b5_-_rental-tools-01-1012-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g996/8-tools-you-should-rent-and-not-buy/>