<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/980x1479/548b5dad263a9_-_rbk-best-food-choices-artichokes-s2.jpg>
<http://www.redbookmag.com/body/healthy-eating/advice/g1757/what-are-phytonutrients/>