<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/50849000/jpg/_50849259_1568b77a-e963-4ec9-a3e8-227baf00aa21.jpg>
<http://www.bbc.co.uk/news/science-environment-12206639>