<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2012/09/24/120924144940_nube_capriles.gif>
<http://www.bbc.com/mundo/noticias/2012/10/120924_venezuela_elecciones_2012_nubes_programas_gobierno.shtml>