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The following is a grammar over alphabet (a,b). S-> Sb | Sab Which of the following strings can be derived which makes the grammar ambiguous

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The following is a grammar over alphabet (a,b). S-> Sb | Sab Which of the following strings can be derived which makes the grammar ambiguous 1) abbba II) ababa III) abbaab IV) ababba V) None of the above as the grammar is unambiguous. IV O III OL O II OV

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