<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x240/54cae433ce504_-_fukushima-robots-01-0312-de.jpg>
<http://www.popularmechanics.com/technology/robots/g795/3-robots-that-braved-fukushima-7223185/>