<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://toc.h-cdn.co/assets/cm/14/37/980x635/540f97541e82c_-_4-tnc-friedrich-engels-and-karl-marx.jpeg>
<http://www.townandcountrymag.com/society/money-and-power/g335/bo-xilai-and-wealthy-leaders/>