<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/08/09/130809033956_sp_manchester_united_loja_afp_304x171_afp.jpg>
<http://www.bbc.com/portuguese/noticias/2013/08/130809_melhorias_futebol_rm_lgb.shtml>