Direction: Four of the following are alike in a certain way based on the English alphabetical series and so form a group. Which is the one that does not belong to that group?

(1) XZTV
(2) QSMO
(3) VXSU
(4) FHBD
(5) MOIK

Choose the related word/letters/number from the given alternatives.
 36 : 6 : : 441 : ?

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