. . "John T. Chambers"@en . "Chambers, John Thomas"@en . "1949Z"^^ . . . . . . . "1949-08-23Z"^^ . "John Thomas Chambers"@en . "John Thomas Chambers (born August 23, 1949) is the executive chairman and former CEO of Cisco Systems"@en . . "2.1E7"^^ . . "Chambers, John"@en . . . "American businessman" .