<http://estante-da-ale.blogspot.com/2019/01/livro-nao-confie-em-ninguem.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://estante-da-ale.blogspot.com/2019/01/livro-nao-confie-em-ninguem.html?showComment=1548443425755>