Consider the following grammar G: S → ABC|AC|A|B A → a B B - bC|a C-cD D- dA Recall that a non-terminal A is useful if there is a derivation of a string of terminals starting from S in which A appears: S=* xA y=* w holds for some x and y which are sequences of terminals and non-terminals (possibly empty) and some w which is a sequence of terminals (possibly empty). For example, if there are only three rules S→ a A, A→ B and B → a , then A is useful because S = a A=a B= a a is a derivation of the sequence of terminals a a starting from S and in which A appears. If A is not useful, then we say that it is useless. Which of the following are the useless symbols of the grammar G above?

Q: Consider now the following context-free grammar G over E = {a, b, c}, with start variable S: %3D S →…

A: Given CFG:   S -> a | Sb | X  X -> acXa | a | epsilon

Q: Consider the grammar G ({S, X, Y, Z}, {a, b, c}, S, P), where: P= { S XYZ, XaX, X8, Y bY, Y E, ZcZ,…

A: Below is the answer to the above question. I hope this will be helpful for you...

Q: Write a non-extended BNF grammar that produces strings in the following language: T = (a, b} L = (w…

A: Given:

Q: 2. Let the Following Grammar be S-> S+S| DRT | (S)| A A-> B| al c| MG| e F-> A| TYU|G B-> d| r| e…

A: Given grammar is: S→S+S|DRT|(S)|AA→B|a|c|MG|εF→A|TYU|GB→d|r|εQ→RTY|GHT a. Given string is w=d+(a+r)…

Q: S -> aABb, A -> bB, B -> A | λ.   (a) Give a leftmost derivation of the string abbb.   (b)…

A: (a)  Leftmost Derivation: Leftmost derivation refers to drive the string by expanding the leftmost…

Q: Consider the following Grammar G= S>0S1S | 1S0S | A Which of the following sentences are in the…

A: the language generated by above grammar must have equal no. of 0's and 1's. (A) Since, no. of zeroes…

Q: Let CFG G₁ of L₁ and CFG G2 of L2 have no variables in common and have start variables S₁ and S2…

A: The given new grammar G combined productions of G1 and G2  S -> SS1S2 | ∈ In the above production…

Q: Given the following EBNF grammar: A -> [B, C,) D B-> '(, E, F, ), E C-> 'G D->-, G E -> "" E-> "O…

A: Given EBNF grammar is,

Q: Let G = (V. E, P, S) be a context-free grammar in which SS only when n = 0. G is an LR(k) grammar (k…

A: explaination given as:

Q: Given G be the grammar with V = {a, b, c, S}; T = {a, b, c}; start symbol S and productions P…

A: Given , A grammar G  We have asked to generate a given string and then , derivation tree for it.…

Q: S--E E--T/E, I

A: The answer for the grammar is

Q: Consider the grammar G = ({S, X, Y, Z}, {a, b, c}, S, P), where: P = { S→XYZ, X→aX, Y→ÞY, Y→E, Z→cZ,…

A: In rightmost derivation a string is replaced with the production rule from right to left

Q: Consider the grammar G = ({S, X, Y, Z}, {a, b, c}, S, P), where: P = { S XYZ, XaX, XE, Y bY, Y E,…

A: Given grammar is: P={S-XYZ, X  -> aX, X -> ε Y->bY, Y -> ε Z->cZ, Z->ε

Q: write a CFG for language L={  aibjck | k=i+j and i,j,k>0 }

A: Note : As per our guidelines we are supposed to answer only 1 question per post , please repost…

Q: Question: consider the grammar G = (V, T, E, P), where V = {E, I} and T= {a, b, c, +, -, x, +, (}…

A: The solution for the above given question is given below:

Q: (3) Give a grammar G= (V,E, S̟P), where V = {4,B,C},E = {a,b},S = A, P: A→ a4|bB,B → bC | aB,C → aB…

A: According to the value given in the question, we will solve all parts.

Q: Please explain how you solve the follwing problem:

A: a) CHAIN set for each variable:CHAIN(S) = {B, C, A}CHAIN(A) = {A}CHAIN(B) = {B}CHAIN(C) = {C, A}

Q: Construct an NFA for the following right linear grammar G = ({S,S1, S1, S2, S3), {a,b,c},S, P) where…

A: First of all let's understand what is NFA and how to construct NFA from grammar. NFA:- In NFA from…

Q: (4) Give a grammar G = (V,T,S,P), where V = {A, B, C},T = {a, b}, S = A, P:A → baA|aB, B → baB|aC, C…

A: ANSWER:-

Q: a) The grammar G is described by its vocabulary V = {a, b, c, A}, Production P = {A - ab, A - abc, A…

A: Actually, given question regarding grammar.

Q: Simplify the grammar, G = {{S, A, B, C, E}, {a, b, c}, P, S} S - AB Where, P is A → a B – b В — С E…

A: The Answer is  in below steps

Q: 2. Consider the following grammar: S-E E E+E/E°E/(E)/1 I-I digit / digit Give the Syntax Directed…

A: give SDT to solve expression 3*5+4

Q: Consider the following grammar where Vn is {X, Y} and Vt is {a,b} and the following production X- Ya…

A:

Q: Give a context-free grammar to generate each of the following languages. (a) {0 110 | mn, and m,n >…

A: Note: Context free grammar has following type of productions: A->(T+N)* where A is non terminal T…

Q: Let consider the grammar G2 = ({S, P, Q, X, D}, {a, b, c, d}, S, P) where P= {S → PB / X; P→ aPb/ab;…

A:

Q: The following is a context-free grammar G: V={A,B,S} S={a,b} v0=S S->A A a|b|A B A->B S a|a…

A: CFG- Context Free Grammar generates all possible pattern of the given string. CFG is the collection…

Q: Consider the following grammar: X -> (Y) | b Y -> Y, X | X List LR(0) items for this grammar

A: An LR(0) is the item of a grammar G is a production of G with a dot at some position in the right…

Q: Consider the following Grammar: G=({A,B,C,D},{0,1,2},P,A} A->OCDAB|OD B->1CBAB|1A C->1 D->0 Convert…

A: G= ({A,B,C,D},{0,1,2,},P,A) A-> 0CDAB|0D B-> 1CBAB|1A C-> 1 D-> 0

Q: Consider the grammar G = ({S, X, Y, Z}, {a, b, c}, S, P), where: P= { S XYZ, XaX, XE, Y bY, Y E, Z…

A: the answer is given below:-

Q: Consider the following grammar, with S as a start symbol: 1) S> A111 2) S> 000A 3) A-> emptystring…

A:

Q: Give a context-free grammar for each of the following languages: a. L1 = {a"b³mc+, n, m 2 0} , E=…

A: a. L1 CFG: S-> aaSc | B | epsilon B-> bbbBc | epsilon As we know The string can be with only…

Q: Consider the regular language L = {w € (0,1}": w has a substring 111}. The NFA, M, below accepts L.…

A: Given that, L={w∈{0,1}*: w has a substring 111} Given NFA contains, set of states= {S, A, B, D}…

Q: Build an NPDA that accepts the following languages on Σ = {a, b, c} without converting to the…

A:

Q: consider the CFG with{S,A,By as the non terminal alphabet jaiby as the terminal alphabet , S as the…

A: In this question, we are given a CFG and we are asked the equivalent reduced grammar. To find out…

Q: Consider the following grammar X→ Ma X- bMc X- de X- bda M→d The given grammar is

A: Introduction :

Q: Theory :: 1. write a CFG for language L={ a'b'c* | k=i+j and i.j,k>0} 2. write a CFG for language L…

A: The answer given as below:·

Q: string ((b),b,(b,b)),show the parsing stack and actions of the parsing SLR(1) parser. Is this…

A: Consider the following grammar: X -> (Y) | b Y -> Y, X | X for the input string…

Q: (5) Consider the grammar G=(V,T,E,P) with V={E,I}, T={a, b, c, +,·, *. (, )}, and productions R → R+…

A: The solution for the above given question is given below:

Q: S -> aSa | aXa X ->aXa | bYb Y -> bYb | empty   where S is the start symbol, non-terminals = {S,…

A: Pumping Lemma: Pumping Lemma states that, if the infinite language has to be accepted by a finite…

Q: Given the following grammar S - Bc|D B B - ab|cS D - d|ɛ

A: For the start symbol S, place $ in Follow(S). For any production rule A → αB, Follow(B) = Follow(A)…

Q: Consider the grammar G symbols production P = (V, T, S, V={S, X, Y}, terminal symbols T {S → XY, X →…

A: The grammar G is a Context free grammar. Context free grammar is a collection of (V,T,P,S). Where V…

Q: Question No. 1: Consider the Grammar: A > B a | c B b | d c b|dc a B > q |e | A a c c > fA C B | q…

A: a) The given grammar does not contain any left recursion. b)The given grammar does not contain left…

Q: Transform the grammar G= ({S, A, B}, {a, b}, P, S) with below production rules P S- ASB | B|a |E A -…

A: A context free grammar is in CNF, if the production rules satisfy one of the following conditions…

Q: Give the derivation tree for ((a+b)∗c+d, using the grammar in Example 5.12. EXAMPLE 5.12 To rewrite…

A: To solve your problem first of all we define  What is Context Free grammer  and  Derivation tree?…

Q: Given the following EBNF grammar: A -> [B, C,] D B -> '(', E, F, '), E C-> ', G D->-, G E -> "ソ F->…

A: Given EBNF grammar is,

Q: Consider the following grammar, S → u BD z B → B V | W D → E F E →y | € F→ X | € 1. Find First and…

A:

Q: Consider the following syntax-directed translation scheme. EE+T{print "+": }|E+0|T T T.F(print ";…

A: LR Parsing: A type of bottom-up parsing is LR parsing. It can parse a wide range of grammars. The…

Q: 2. Given the language L = {w: w begins with an odd number of 0's and after that has an even number…

A: 2 a. The regular expression for L can be given by: Regular expression = 0(00)*(11)* The expression…

Q: Let G = (V, T, S, P ) be a phrase-structure grammar with V = { 0, 1, A, S }, T = { 0, 1 } and the…

A: From the above given value G=(V,T,S,P) with V = { 0, 1, A, S }, T = { 0, 1 } and the set of…

Intelligent Machines

Machines that use artificial intelligence to learn from the environment and past experiences to perform better in the presence of variability and uncertainty are called intelligent machines. Intelligence develops according to environment and experience. It is human-like behavior. When the computer system or any programmed machine learns from the inputs and corresponding outputs, it can be called an intelligent machine.