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Design context-free grammars for the following languages. e) The set of strings of as and bs with more as than bs. (f) The set of

Design context-free grammars for the following languages.

e) The set of strings of as and bs with more as than bs.

(f) The set of even-length strings of as and bs that are not of the form ww.

(g) The set of strings of as and bs with twice as many as as bs.

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