<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/768x516/54eba2608155d_-_artichoke-preparation-step-3-xl.jpg>
<http://www.womansday.com/food-recipes/cooking-tips/tips/g779/how-to-cook-artichokes/>