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[Context-free grammar] Suppose is the context-free grammar given below where and are variables and the following 6 terms are terminal symbols. Show that the grammar

[Context-free grammar] Suppose image text in transcribed is the context-free grammar given below where and are variables and the following 6 terms are terminal symbols.

image text in transcribed

Show that the grammar image text in transcribed is ambiguous by finding a string in and give two different parse trees of .

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