<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://edc.h-cdn.co/assets/cm/15/04/54bfb19e71db8_-_05-gravy-christofle-lgn.jpg>
<http://www.elledecor.com/life-culture/entertaining/tips/g70/gravy-boats/>