Select the Context FreeGrammar below that is in theform of Chomsky NormalForm.G=( {S,a,b}, {0,1}, S,{S0b|1a, a0|OS|1aa,b➡1|1s|Obb})☐ G=( {S,a,b}, {0,1}, S,{Sab|1, a0|1|Sa,b→1|bs})☐ G=( {S,A,B}, {a,b}, S,{S AB|bA, Aa|b|SB,B→a|SB})☐ G=( {S,A,B}, {a,b}, S,{S-BB|b, A➡a|b|SS,B→a|SA})

To answer this question, we need to understand the definition of Chomsky Normal Form (CNF) and the…

Answered: Select the Context Free Grammar below…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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refer to the grammar S -> aSa | aXa X ->aXa | bYb Y -> bYb | empty where S is the start symbol, non-terminals = {S, X, Y}, terminals = {a, b} This Question: Use the pumping lemma to show that the language generated by this grammar is not regular.
4. Construct a Chomsky normal form grammar for L(G) for the following cfg G: G=({S,B}, {a,b,c,d}, {S→BdSaSaS|BSS|b, B->cSda|S|dcb}, S). Note: You must first remove all unit productions.
Provide the rules for context-free grammars that generate the following languages. L4 = {w ∈ {a, b, c} | |w| ≥ 3, |w| is odd, and the first symbol, middle symbol and last symbol of w are all different }
In this problem you are provided with a CFG/BNF and you are to determine which of the following strings are inside of the described grammar G defined by G={V,E,R,S} where V={ } E = { a, b } R=[ --> aa | bb|a] S= aa aaa a bab bb aabbabbaa bbbbbabbbb bbbbbabbbbb
Context Free Grammar State whether it is ambiguous or unambiguous. If it is ambiguous give an equivalent unambiguous grammar. If it is unambiguous, state all the precedences and associativities enforced by the grammar. 1. <S > -> <S > - <T > | <T > - <S > | <T ><T > -> N + <T > | N | ( <S >)
Construct a Chomsky normal form grammar for L(G) for the following cfg G: G=({S,B}, {a,b,c,d}, {S→Sb|Ba, B→BdBc|S|ɛ}, S). Note: You must first remove all & and all unit productions.
1. (a) Write the prefix form for the expression a *- ( b + c ) (b) Write an SDD for the following grammar, which converts infix expressions to prefix expressions. E -> E + T | T T -> T * F | F F -> id | (E) 2. Write the quadruples, triples, and indirect triples for the following expression - (a+b)*(c+d) - (a+b+c)

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