<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/66744000/gif/_66744662_trident_missile_reach_464.gif>
<http://www.bbc.co.uk/news/uk-politics-22023184?postId=115820457>