<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x320/54cb23263d117_-_flatiron-1213-de.jpg>
<http://www.popularmechanics.com/technology/design/a9785/a-pythagorean-party-at-the-flatiron-building-16237968/>