<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/65855000/jpg/_65855020_3dac0579-0699-48cf-bab5-9a07f7b3a776.jpg>
<http://www.bbc.com/news/science-environment-21431678>