<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2014/06/17/140617113502_iraq_isis_control_624_spanish_v2.gif>
<http://www.bbc.com/mundo/noticias/2014/06/140621_extremismo_real_combatientes_isis_irak_bd.shtml>