<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54caf721b03de_-_circ-saws-test-10-0912-lgn.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g944/cordless-circular-saw-comparison-test/>