<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/768x516/54fe36d23dfc9-land-lakes-stick-salted-butter-0511-xl.jpg>
<http://www.goodhousekeeping.com/health/diet-nutrition/advice/g224/healthy-food-choices/>