<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/16/14/640x320/landscape-1459867548-merleall3.jpg>
<http://www.popularmechanics.com/home/interior-projects/how-to/a20282/double-the-life-of-your-water-heater/>