<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb366a311f8_-_rear-wheel-mowers-07-0514-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1513/we-test-the-best-rear-drive-lawnmowers/>