<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/980x1469/54c1611d3495d_-_07-hbx-polka-dot-bunk-bed-0710-de.jpg>
<http://www.housebeautiful.com/lifestyle/kids-pets/g1806/cool-bunk-beds/>