uestion 3. Using the knowledge of Mapping Grammars to Recursive-Descent Recognizers, please convert the grammar to class StatParser. You need to provide the conversion of each sub-rule and token. grammar stat returnstat assign ifstat expression id Answer: Statement : returnstat | assign | ifstat; : 'return' expression ';"; : id '-' expression; : 'if expression 'then' stat uestion 3. Using the knowledge of Mapping Grammars to Recursive-Descent Recognizers, please convert the grammar to class StatParser. You need to provide the conversion of each sub-rule and token. grammar stat returnstat assign ifstat expression id Answer: Statement : returnstat | assign | ifstat; : 'return' expression ';"; : id '-' expression; : 'if expression 'then' stat