<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/980x653/548a7fa85ab56_-_rbk-green-toys-msm-le-cirque-mobile-s2.jpg>
<http://www.redbookmag.com/life/mom-kids/advice/g1406/green-toys/>