<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/160x213/54eb7d276d902_-_pop-and-lock-mdn.jpg>
<http://www.womansday.com/food-recipes/food-drinks/g84/5-perfect-products-for-a-picnic-108422/>