<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54ca6481871bb_-_250cc-test-03-0511-xln.jpg>
<http://www.popularmechanics.com/cars/motorcycles/g147/how-to-get-started-picking-the-right-250cc-motorcycle/>