<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/15/53/640x320/landscape-1451492015-screen-shot-2015-12-30-at-111355-am.png>
<http://www.delish.com/food-news/a45419/color-changing-cake/>