<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://roa.h-cdn.co/assets/cm/14/47/980x598/546b6bcf30544_-_2010-audi-a5-20t-quattro-vs-2010-lexus-is-350c-2-lg.jpg>
<http://www.roadandtrack.com/new-cars/car-comparison-tests/reviews/a16317/2010-audi-a5-20t-quattro-vs-2010-lexus-is-350c/>