<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54fea62f15d6c-organic-blueberries-mdn.jpg>
<http://www.goodhousekeeping.com/food-recipes/healthy/news/g168/dirty-dozen-foods/>