Let G3: S -> aSA S -> b A -> bAb A -> aS Use the brute force parsing algorithm to show that there is no left-most derivation for w = abbab. (Show all rounds. Do not use adhoc reasoning) Eliminate derivation from next round only if • prefix of w doesn’t match sentential form • or if |sentential form| > |w| • or if sentential form is all terminals and does not match w

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Let G3:
S -> aSA
S -> b
A -> bAb
A -> aS
Use the brute force parsing algorithm to show that there is no left-most
derivation for w = abbab. (Show all rounds. Do not use adhoc reasoning)
Eliminate derivation from next round only if
• prefix of w doesn’t match sentential form
• or if |sentential form| > |w|
• or if sentential form is all terminals and does not match w

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