<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x426/54cad4c1727cd_-_blue-origin-patent-101311-def.jpg>
<http://www.popularmechanics.com/space/rockets/a11823/what-is-jeff-bezos-building-out-there/?click=main_sr>