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Consider a language of the following character strings: The letter A, the letter B, the letter followed by a string that is in the language, and the letter followed by a string in the language. For example, these strings are in this language: A, CA, CCA, DCA, B, CB, CCB, DB, and DCCB.

a. Write a grammar for this language.

b. Is CAB in this language? Explain.

c. Write a recursive recognition algorithm for this language.

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