<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/2013/12/15/131215191547_peter_o_toole_224x280_getty.jpg>
<http://www.bbc.com/mundo/ultimas_noticias/2013/12/131215_ultnot_muere_peter_o_toole_jgc.shtml>