<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/64782000/jpg/_64782873_sandy_hook_school-624v2.jpg>
<http://www.bbc.co.uk/news/world-us-canada-20750666?postid=114685754>