<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x430/54ca9fda7f595_-_rides-11-freefall-xln.jpg>
<http://www.popularmechanics.com/technology/design/g271/18-strangest-rides/>