<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x240/54cb03e24bd0e_-_recip-saws-10-0102-lgn.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1022/reciprocating-saw-showdown-12-tools-go-head-to-head/>