<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://toc.h-cdn.co/assets/cm/14/37/980x635/540f7b695edbc_-_tcx-02-brooke-astor-nan-kempner-diamond-jewelry-1011-xln-lg.jpg>
<http://www.townandcountrymag.com/style/jewelry-and-watches/g32/diamond-jewelry-fall-2011/>