<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/12/21/131221155349_lockerbie_304x171_getty_nocredit.jpg>
<http://www.bbc.com/mundo/ultimas_noticias/2013/12/131220_ultnot_lockerbie_25_anos_ng.shtml>