<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://img0.rtp.pt/noticias/images/img_fb.jpg>
<http://www.rtp.pt/noticias/economia/ren-compromete-se-a-manter-dividendos-de-169-centimos-por-acao-ate-2016_n602113>