Question: Create a context-free grammar for the regular expressions. Include in your grammar the basis elements (empty set, empty string, single alphabet symbol), the primitive operators

Create a context-free grammar for the regular expressions. Include in your grammar the basis elements (empty set, empty string, single alphabet symbol), the primitive operators (Union, Concatenation, and Kleene-closure), and parenthesized expressions. Include in the grammar nonterm that may derive any alphabet symbol.

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