<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eaf9b5dffc0_-_01-spaghetti-tree_medium.jpg>
<http://www.womansday.com/life/a2403/famous-april-fools-day-pranks-115868/>