<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cb3d7a865b7_-_tool-names-16-0714-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1559/17-tools-with-delightfully-strange-names/>