<https://www.projetoacbr.com.br/forum/topic/64276-provedor-sigcorp-erro-302/#comment-420194>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.projetoacbr.com.br/forum/topic/64276-provedor-sigcorp-erro-302/>