<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb1b0ca2af3_-_ladee-launch-09-0913-lgn.jpg>
<http://www.popularmechanics.com/space/moon-mars/g1294/behind-the-scenes-at-nasas-wallops-island-flight-facility/>