<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/160x208/54bf518732f55_-_hbx-dark-blue-library-harper-0212-xl.jpg>
<http://www.housebeautiful.com/room-decorating/colors/g1688/paint-your-bookshelves/>