Question: You are to define the syntax of BNF itself. Write a BNF grammar describing the syntax of BNF; i.e., define the syntax of BNF itself

You are to define the syntax of BNF itself. Write a BNF grammar describing the syntax of BNF; i.e., define the syntax of BNF itself using BNF. Use a pair of single quotes to use meta symbols like | and -> as terminal symbols, e.g., '|' and '->'. You may assume that non-terminals such as  and  are already defined. Is the following a sentence of the language you defined in (a) above? Justify your answer by stating the reason.  ->  +  |   -> 5 Based on your answer to (a) above, draw a parse tree of the following sentence.  ->     -> + | -

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