<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x1306/54fed8bbd7e4f-ghk-maximize-nutrients-vitamin-c-s2.jpg>
<http://www.goodhousekeeping.com/health/diet-nutrition/g335/get-more-food-nutrients/>