<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/63870000/jpg/_63870635_davidblackprisonofficerkilled02(2).jpg>
<http://www.bbc.co.uk/news/uk-northern-ireland-26042547>