<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eb55212b029_-_make-a-three-strand-tourmaline-necklace-mdn.jpg>
<http://www.womansday.com/home/crafts-projects/how-to/a4108/make-a-three-strand-tourmaline-necklace-84360/>