<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/2014/04/03/140403151500_lauki_kala_2_624x351_bbc.jpg>
<http://www.bbc.com/mundo/noticias/2014/04/140403_leopardos_india_elecciones_ch.shtml>