<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cac16735d14_-_extreme_howto_02_0311-de.jpg>
<http://www.popularmechanics.com/adventure/sports/a6585/how-to-snap-roll-a-stunt-plane/>