<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/72574000/jpg/_72574064_f25cc056-a060-4e21-bf05-0543e9dddd73.jpg>
<http://www.bbc.com/news/science-environment-26267918>