<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfc5d743cc2_-_armstrong-collins-aldrin-quarantine-0509.jpg>
<http://www.popularmechanics.com/space/moon-mars/a4306/4319083/>