<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/13/640x320/54d11f3f1bf68_-_breakthrough-07-opoc-1011-xln-57290301.jpg>
<http://www.popularmechanics.com/cars/a7167/the-lighter-better-more-efficient-two-stroke-engine/>