<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfcf31a94cc_-_f_cell_slideshow_495x170_112210.jpg>
<http://www.popularmechanics.com/cars/hybrid-electric/a6278/2011-mercedes-benz-b-class-f-cell-test-drive/>