<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/56658000/jpg/_56658950_ellamy-906-110525-0172-out-unc-0135.jpg>
<http://www.bbc.com/news/science-environment-16250402>