<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb61c3f0e41_-_zero-turn-mowers-04-0513-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1736/tool-test-we-take-6-zero-turn-mowers-for-a-spin/>