<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/980x653/54c12befe1125_-_01-hbx-stacks-of-books-pxeou5-xln.jpg>
<http://www.housebeautiful.com/design-inspiration/house-tours/g1525/james-erwin-cull-apartment/>