<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb22b5b265f_-_doctor-who-tech-01-1113-de.jpg>
<http://www.popularmechanics.com/culture/tv/g1353/10-doctor-who-technologies-that-sort-of-exist/>