<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/54f76db74c14a_-_pastawithsweetpotatoes.jpg>
<http://www.womansday.com/food-recipes/a47310/pasta-smoky-sweet-potatoes-bacon/>