<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2014/04/12/140412225726_sp_manifestantes_512x288_reuters.jpg>
<http://www.bbc.com/mundo/ultimas_noticias/2014/04/140412_ultnot_ucrania_toma_sloviansk_ch.shtml>