"1894-07-07Z"^^ . "Germany" . "Jacobsen, Fritz John"@en . . . "Vizefeldwebel Fritz John Jacobsen was a World War I flying ace credited with eight confirmed and two unconfirmed aerial victories."@en . "1894Z"^^ . "World War I flying ace" . "1981-08-03Z"^^ . . . "Fritz John Jacobsen"@en . "1981Z"^^ . . . .