<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/73514000/jpg/_73514473_01a67a17-0e1c-479c-8868-88c79bdf151d.jpg>
<http://www.bbc.co.uk/news/science-environment-26668835>