<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/980x1306/54cae2046b45c_-_byfr-01-cables-de.jpg>
<http://www.popularmechanics.com/technology/robots/g779/build-your-own-robot/>