<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://roa.h-cdn.co/assets/cm/14/49/980x598/547fc9787deeb_-_porsche-918-press-007-lg.jpg>
<http://www.roadandtrack.com/car-shows/geneva-auto-show/news/g4956/photos-porsche-918-spyder-concept/>