<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2014/07/02/140702041242_aseel_muthana_624x351_reuters_nocredit.jpg>
<http://www.bbc.com/mundo/noticias/2014/07/140702_isis_chileno_noruego_yihadista_men.shtml>