<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2014/04/16/140416000541_cochella_464x261_ap.jpg>
<http://www.bbc.com/mundo/noticias/2014/04/140409_cultura_california_festival_musica_coachella_famosos_jg.shtml>