<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb3340eaea8_-_weird-weather-06-0414-de.jpg>
<http://www.popularmechanics.com/science/environment/g1500/10-weird-wonderful-weather-phenomena/>