. . . . . . . . "Martin Sorrell" . . . . . . . "Sir Martin Sorrell's" . . . . "S4 Capital" . . . . . . . . "Sir Martin Sorrell" . . . . . . "Martin Stuart Sorrell" . . . . . . . . "1945" . . . "1945-02-14" . . . . . . . . "Martin Sorrell" . . . . . . . . .