<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/768x516/54c0a957683ad_-_20-hbx-bulldozer-canstruction-xln.jpg>
<http://www.housebeautiful.com/lifestyle/fun-at-home/news/g1359/nyc-canstruction-2013/>