Question: Construct a grammar that generates all regular expressions over the alphabet {a, b}. Consider the grammar in Example 3.1.5. Suppose parentheses (,) have been dropped

Construct a grammar that generates all regular expressions over the alphabet {a, b}.

Consider the grammar in Example 3.1.5. Suppose parentheses (,) have been dropped from all rules. Give two different parse trees for the string V + V * V

Consider the grammar {S -- aSb, S - abS, S -* e}.

a) Show that the grammar is ambiguous.

b) * Find an equivalent unambiguous grammar.

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