Question: In all cases means the empty string and S is the Start Symbol 2. Consider the following grammar. S a SA | A b A

In all cases means the empty string and S is the Start Symbol

2. Consider the following grammar.

S aSA |

A bA |

(a) (5 pts) Prove that the grammar is ambiguous by drawing two different derivation trees for the string: aabb.

(b) (5 pts) Specify the language generated by the ambiguous grammar above.

(c) (5 pts) Construct an equivalent unambiguous grammar for the grammar above.

Note: Two grammars are equivalent when they generate the same language.

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