<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/51508000/jpg/_51508654_ef16e6de-616e-4929-baed-fdbca06d09a3.jpg>
<http://www.bbc.co.uk/news/science-environment-12619342>