Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
The pattern followed here is: The second letter is the immediate preceding letter of the first letter and the third letter is the fifth preceding letter of the second letter as per the English alphabetical series. HGB → H - 1 = G, G - 5 = B RQM → R - 1 = Q, Q - 5 = L ≠ M FEZ → F - 1 = E, E - 5 = Z MLG → M - 1 = L, L - 5 = G
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