<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x478/54cb1fad982ad_-_earthmovers-02-de.jpg>
<http://www.popularmechanics.com/technology/infrastructure/a9648/how-i-learned-to-drive-enormous-earthmovers-16127088/>