<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/51/980x1306/548f79512e6dc_-_rbk-birkenstock-sandals-sam-edelman-s2.jpg>
<http://www.redbookmag.com/fashion/trends/tips/g2330/birkenstock-style-shoes/>