<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/54c13ea25e723_-_hbx-vancouver-house-jan-1974-lg.jpg>
<http://www.housebeautiful.com/lifestyle/fun-at-home/a1694/guess-the-year-structured-house/>