<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/71169000/jpg/_71169519_80a9dbdd-c2a0-4a15-913c-77a0c8809971.jpg>
<http://www.bbc.co.uk/news/science-environment-24962919>