<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x640/54ff42f121aae-rbk-graphics-rule-6-xln.jpg>
<http://www.goodhousekeeping.com/health/diet-nutrition/advice/g1031/healthy-diet-rules/?src=shelter_footer>