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Consider the following grammar S rightarrow AC |CB| CD A rightarrow aA |elementof B rightarrow bC C rightarrow cB D rightarrow dD |A| C (a)

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Consider the following grammar S rightarrow AC |CB| CD A rightarrow aA |elementof B rightarrow bC C rightarrow cB D rightarrow dD |A| C (a) What are the generating symbols? (b) What are the reachable symbols? (c) What are the useless symbols? Explain

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