Question: 4. (3 points) For the simple arithmetic language we studied in class, imagine we add a unary operator * for negation; that is, -9 is

4. (3 points) For the simple arithmetic language we studied in

4. (3 points) For the simple arithmetic language we studied in class, imagine we add a unary operator * for negation; that is, "-9" is interpreted as number negative night. The grammar is then -> | + - * -> 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 The grammar is clearly ambiguous. Reformulate the grammar so that + and - are left-associative and the precedence of - is higher than "+" and "_

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