<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x480/54cb081f31d2a_-_chainsaw-test-01-0213-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1079/we-test-the-best-no-nonsense-easy-handling-chain-saws/>