<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/640x430/54eb9c68b419d_-_4-how-to-cut-pineapple-step-3-xl-39477502.jpg>
<http://www.womansday.com/food-recipes/food-drinks/g716/how-to-cut-pineapple/>