<https://aveiro.pa.gov.br/wp-content/uploads/2022/05/PARECER-FINAL.pdf>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://aveiro.pa.gov.br/pregao-eletronico-no-020-2022-pma-pe-srp/parecer-final/>