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The grammar G: S → SS | a | b is ambiguous. Check all and only the strings that have exactly two leftmost derivations in G.(a) bbb(b) ab(c) All of the mentioned(d) None of the mentioned |
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Answer» Correct choice is (c) All of the mentioned To elaborate: S => a. A string of length 2 has only one derivation, e.g., S => SS => aS => ab. |
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