<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/16/34/640x320/landscape-1471963120-screen-shot-2016-08-23-at-103452-am.jpg>
<http://www.popularmechanics.com/adventure/outdoors/a22491/keep-gadgets-charged-camping-hiking/>