<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54ec0782ade17_-_planters-nut-rition-berry-nut-peanut-butter-xl.jpg>
<http://www.womansday.com/food-recipes/food-drinks/reviews/g1734/best-peanut-butter-brands/?click=wdy-more>