<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/cpsprodpb/12A21/production/_87412367_528777main_pia13746-43_full-1.jpg>
<http://www.bbc.com/news/science-environment-35158891>