. "1951Z"^^ . "34thMayor of Calgary" . . "Canadian politician" . "Duerr, Al"@en . "Alfred (Al) Herman Duerr (born January 29, 1951) is a Canadian former politician who served as the 34th Mayor of Calgary, Alberta from 1989 to 2001, and a city alderman from 1983 to 1989. He is the Chief Executive Officer of Emergo Projects International, and serves on the board of directors for two other companies in Calgary."@en . "Alfred Herman Duerr"@en . . "1951-01-29Z"^^ . . "1989-10-23Z"^^ . "2001-10-22Z"^^ .