<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://clv.h-cdn.co/assets/cm/15/08/54ea5181c6198_-_mini-christmas-tree-tinsel-gtl1206-de.jpg>
<http://www.countryliving.com/home-design/decorating-ideas/g316/decorate-christmas-trees-1206/>