<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/71552000/jpg/_71552601_c0064082-monk_saki_monkey_in_a_tree-spl.jpg>
<http://www.bbc.com/news/science-environment-25231555>