Assigning the same frequency to more than one words in a file

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http://www.unix.com – I have a file of names with the following structure Code: NAME [tab] FREQUENCY NAME NAME [tab] FREQUENCY NAME NAME NAME [tab] FREQUENCY i.e. more than one name is assigned the same frequency. An example will make this clear Code: SANDHYA DAS        6901 ARATI DAS        6201 KALPANA DAS        4714 GITA DAS        4550 BISWANATH DAS        3949 SWAPAN DAS        3941 SUKUMAR DAS        3876 GOPAL DAS        3835 S (HowTos)