<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb125e2b4b6_-_mighty-yard-machines-02-0613-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1212/7-mighty-machines-to-tame-any-lawn/>