<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x345/54cafb1fdfd52_-_self-fetching-jug-02-1112-de.jpg>
<http://www.popularmechanics.com/science/a8238/early-adopter-build-this-rolling-comeback-can-14363098/>