<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cb0adb39dc9_-_cable-lines-01-0313-cshgmn-mdn.jpg>
<http://www.popularmechanics.com/technology/infrastructure/a8773/protecting-the-submarine-cables-that-wire-our-world-15220942/>