"Subclassing" show in Haskell?

Posted by me2 on Stack Overflow See other posts from Stack Overflow or by me2
Published on 2010-03-27T14:44:42Z Indexed on 2010/03/27 15:03 UTC
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Lets say I have the following:

data Greek = Alpha | Beta | Gamma | Phi deriving Show

I want to use the default showing of all items except Beta, which I want to say "two".

Can I do this?

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