Let BLOOP be the language of strings of even length over the alphabet {a,b} in which the two middle letters are different to every other letter in the string. Give a Context-Free Grammar for the language BLOOP.

Q: Implement a more extensive finite-state grammar for noun groups by using the examples given in…

A: NP rule In the below rule, we use NN to stand for NN or NNP or NNS. The above rules cover the NPs…

Q: Write a regular expression for the language L, over alphabet Σ= {0, 1, 2), such that every 0 that is…

A: Given that, Σ={0,1,2} In Regular expression, every 0 is followed by 1 and every 1 is followed by a…

Q: Find CFGs that for these regular languages over the alphabet Σ = {a, b}. Draw a Finite Automata…

A: In this question we have to design Finite Automata for the given language then find the CFGs for all…

Q: Give the regular expression for the language described below or for the given Finite Automaton over…

A:

Q: Give an algorithm to determine if a string w is in a context-free language L given a grammar for the…

A: In case of regular languages, it is comparatively easy , but for Context Free languages. Pumping…

Q: Give the context free grammar that generates the following language. L = {w {a, b}* | w is a…

A: We have to write context-free grammar that generates the following language. L = {w {a, b}* | w is a…

Q: a right-linear grammar for the set of strings over {a, b, c} that contain both aa and bb as…

A: A right-linear grammar for the given language

Q: Write a grammar for the following language. This language consists of strings that have n copies of…

A: Grammar : can be defined as the set of rules defined by the language.                   Grammar is a…

Q: Write a grammar for the language over the alphabet {a,b,c} consisting of strings that start and end…

A: Given that, Set of input alphabets= {a, b, c} The grammar contains {a, b, c} and must start and end…

Q: Construct a regular expression for the language that contains all strings over {0,1} whose length is…

A: Here in this question we have asked to find the regular expression for the language that contains…

Q: Find out a context free grammar for the language of strings over the alphabet { 0,1} such that the…

A: S → TS|1T|1S T → TT|0T1|1T0|E(Empty string)

Q: Suppose that L, is a regular language and L, is a context-free language. Which one of the following…

A: Explanation:L1 is  regular and L2 is  context-free language.Every regular language is context-free…

Q: reate a grammar for the set of binary strings that represent odd natural numbers.

A: We need to create a grammar for the set of binary strings that represent odd natural numbers. The…

Q: Consider the language L of strings over the alphabet Σ = {a, b} which contain an equal number of a’s…

A: CFG is a formal grammar which is used to generate the all possible strings in given formal…

Q: Let E = {a, b}. Consider the language that contains all strings with no more than one 'a'. Draw an…

A: Defined the given language to NFA, DFA, regular expression, and right linear grammar

Q: Give a regular expression for the smallest language Lover Σ = {a,b,c} such that EEL • aa EL Vr E L,…

A: A regular expression is a character sequence that describes a text search pattern. String-searching…

Q: Let Σ={0,1,a}. The language L that we are interested in is all and only the strings that do NOT…

A:

Q: automaton for a language that includes strings that start with 0 and end with 0 for ∑= {0,1, 2}, and…

A:

Q: Consider the decidable language ALLNFA= {IN is a NFA and N accepts all strings over }. Construct the…

A: Decidable  Some Turing machines never go into an infinite loop, they are always in halt. Turing…

Q: Build a TM over the alphabet Σ = {a,b} that accepts the language where each word has twice as many…

A: TM stands for Turing Machine. Alan Turing invented the Turing machine in the year 1936.Turing…

Q: Consider the language L of strings over the alphabet Σ = {a, b} which contain an equal number of a's…

A: By establishing a context-free grammar (CFG), it is possible to demonstrate the context-freeness of…

Q: Consider a grammar G that includes the four lookahead rules for A. Give the code for GetA (s, i)…

A: Given  a grammar G that includes the four lookahead rules for A. the code for GetA (s, i) that is…

Q: Give a regular expression for the following language L a) L is the set of all strings over alphabet…

A: We are going to give regular expression for the given Language with and without epsilon-empty…

Q: Let G be a context free grammar with one nonterminal and n rules. If G generates a finite mumber of…

A: Context free grammar  is a formal grammar whose production rules are of the form. with a single…

Q: Can you describe an algorithm that given two context-free grammars G1 and G2 outputs YES if and only…

A: context-free grammar:- In order to produce every feasible pattern of strings in a given formal…

Q: What is the grammar G for the following language? L (G) = { 0 1 | n>=1 }

A: The language is : 0n 1n

Q: Is the language composed of all strings over the alphabet {a,b} that contain an odd number of a's a…

A: Answer: Yes, Σ = a, b, L=w  no of a's in w are odd; is a regular language.

Q: Is the language composed of all strings over the alphabet {a,b} that contain an odd number of a's a…

A: Regular language regrex:- A regular expression is a string of characters that describes a search…

Q: Describe an algorithm that given two context-free grammars G1 and G2 outputs YES if and only if…

A: CONTEXT FREE GRAMMAR:- A context-free grammar is a set of rules that define how to form strings in a…

Q: 2. Given Language with string that doesn't have ab in it with Σ = {a,b}, create regular grammar of…

A: Here, we are given a language and alphabet set. And we are asked to create a regular grammar for it.…

Q: 4. Given a language L, the language LR is defined as the language consisting of the reverse of all…

A: PALINDROME: A palindrome is a word, number, or sequence of words. when we read that backward or…

Q: Find CFGs that for these regular languages over the alphabet Σ = {a, b}. Draw a Finite Automatafirst…

A: Let's tackle each of these languages one by one.(a) Language of all words containing the substring…