ref: e494ac5786800ae9d7e71f0677bd008a8bca8c83
dir: /lib/Data/Semigroup.hs/
module Data.Semigroup( module Data.Monoid, ) where import Prelude() -- do not import Prelude import Data.Monoid hiding(Monoid(..)) -- Data.Monoid contains the definition of Semigroup