<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54ca9e57092d2_-_wires-md.jpg>
<http://www.popularmechanics.com/technology/how-to/a5417/how-to-organize-and-untangle-cables-and-wires/>