<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54d0e9c37fc6a_-_bench-lede-470-1108.jpg>
<http://www.popularmechanics.com/home/how-to-plans/how-to/a3729/4286854/>