Given the grammar ({A, B, C, D), (a, b), D, {DA, AB, AC, ABC, A CB,...

 

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Given the grammar ({A, B, C, D), (a, b), D, {DA, AB, AC, ABC, A CB, A BAC, A CAB, Bb, Ba, Cb, C a}), use the left most derivation to show if the string below is valid or invalid? S: ababa Given the grammar ({A, B, C, D), (a, b), D, {DA, AB, AC, ABC, A CB, A BAC, A CAB, Bb, Ba, Cb, C a}), use the left most derivation to show if the string below is valid or invalid? S: ababa