Consider the following two syntax-directed definitions SDD1 and SDD2 for type declarations. $D$ is the start symbol, and $int$, $float$ and $id$ are the three terminals. The non-terminal $V_1$ is the same as $V$ and the non-terminal $D_1$ is the same as $D$. Here, the subscript is used to differentiate the grammar symbols on the two sides of a production. The function $put$ updates the symbol table with the type information for an identifier. Let P and Q be the languages specified by grammars G1 and G2, respectively. Which of the following statements is/are true?

Consider the following two syntax-directed definitions SDD1 and SDD2 for type declarations. D is the start symbol, and int, float and id are the three terminals. The non-terminal V1 is the same as V and the non-terminal D1 is the same as D. Here, the subscript is used to differentiate the grammar symbols on the two sides of a production. The function put updates the symbol table with the type information for an identifier. Let P and Q be the languages specified by grammars G1 and G2, respectively. Which of the following statements is/are true?

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