<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/16/26/980x490/landscape-1467309401-duuuune.jpg>
<http://www.popularmechanics.com/space/moon-mars/news/a21615/mars-new-a-kind-of-dune/>