<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb03e15e1e7_-_recip-saws-07-0102-lgn.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1022/reciprocating-saw-showdown-12-tools-go-head-to-head/>