<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb1a28222aa_-_5-drill-bits-04-0913-lgn.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1302/5-bits-to-push-your-cordless-drill-into-overdrive/>