<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/51/980x653/548f73675cab9_-_rbk-4-burn-fat-faster-order-water-s2-74409425.jpg>
<http://www.redbookmag.com/body/advice/g667/teeth-whitening-foods/>