<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/cpsprodpb/107BB/production/_86351576_468909e1-16ca-42f2-96b2-916328309978.jpg>
<http://www.bbc.com/news/science-environment-34638603>