. . . . . . . . . . "The Rede Ferrovi\u00E1ria Federal, Sociedade An\u00F4nima (RFFSA) (Portuguese: Rede Ferrovi\u00E1ria Federal S.A., Federal Railroad Network) was the state owned national railway company of Brazil created from Brazilian Federal Law #3.115 on March 16, 1957, after several railroads were nationalized by the Brazilian government. However, the railroad did not take full effect until September 30, 1957."@en . . . "Rede Ferrovi\u00E1ria Federal Sociedade An\u00F4nima"@en . "1996Z"^^ . . . "1957Z"^^ . "RFFSA" . . . . . . . . . .