<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/74782000/jpg/_74782992_eaf0dcbc-2013-4aa6-a4f7-b52d7a7a1535.jpg>
<http://www.bbc.co.uk/news/science-environment-27369288>