5 do nowConsider the following context free grammar:S-AA → BC|DBCB → Bb|eD → aldFind the number of unique productions in {Goto (A →D.BC, B) U Goto (A → .DBC, D)}

Answered: Image /qna-images/answer/841165f3-5815-414a-8f63-01cfddadc853.jpg

Answered: Consider the following context free…

Consider the following context free grammar: S-A A → BC|DBC B → Bb|e C→|E D → a|d Find the number of unique productions in {Goto (A D.BC, B) U Goto (A → .DBC, D)}

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

See similar textbooks

Related questions

Q: Let G be a context free grammar with productions given below. S→ ABAC A→ aA e C → d Transform the…

A: Introduction

Q: 5 The production rules for a grammar G with start symbol S, terminals a, b, and c and non-terminals…

A: Here, we are going to generate the string bacab using given grammar G and also check whether the…

Q: 1)Let G = (V, ∑, R, S) be a grammar with V = {S, H, Gm J}; ∑ = {h, g, j}; and the set of rules:…

A: Actually, given rules are: S → H H → h | hJG G → Gg | Sg | HgJ J → jH | HHJ| Jj

Q: Consider the following context-free grammar. S→aBa∣B B→bbC∣cc∣ε C→cC∣bBcCb∣ε Notice that the…

A: For converting into Chomsky normal form, we have to remove the ,We can use Cc Bbb Cbcb

Q: Given L ={ambn | m< n }. Derive (i) a context-free grammar that accepts L (ii) a PDA accepting L by…

A: i) a context-free grammar that accepts L given : L ={am bn | m< n }. so, m need to less then n ,…

Q: g) A CFG(Context Free Grammar) is said to be in Chomsky Normal Form (CNF), if al1 the productions…

A: Introduction :Given , a CNF we have asked for the number of steps required to generate a string of…

Q: Consider the context free grammar G-(V.E.R.S), where fa.b}. V-la.b.S} R {S→aSb. S-aSa, SbSa, S-bSb,…

A: The context free grammar shown that regular

Q: Problem 2. Consider the grammar S -> AB A → Ba AlbB B→ASBASE 1. Show that this grammar is ambiguous…

Q: Let G be a context free grammar where (G-((S, A, B, C),(a, b, d), P, S) with the productions in P…

A: The answer for the context free grammar is

Q: 1. Let grammar, G with production S→ aaSB | ɛ, B bB | b B-→ bB l b a) Show a derivation of w =…

Q: Consider the Context Free Grammar given by the usual rules, 0 and 1 are the only inals, and the…

A: 1) As start symbol S is present in RHS of S -> AABB|01 we need to create new production S0 ->…

Q: Find SLR for following grammar S->[B A->int [B B-1 C C->A] | A.C 1- FIRST AND FOLLOW 2-Set of…

A: SLR for following grammar;

Q: Using the following BNF assignment grammar: id> := cexpr> => cexpr> + cexpr> I * I ( ) I AIBIC…

A: We are given a BNF grammar and asked the derivation of given string. Derivation means drive the…

Q: Consider the following Grammar E → E + E E → E - E E → id Check whether the given grammar is…

A: Summary: In this question, we have been following grammar and we have to check that if the grammar…

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: 1. Consider the following context-free grammars (CFG). With the help of leftmost derivation decide…

Q: Consider the following grammar: à a b à b | b à a | a Which of the following…

A: The given grammar :: s -> A a B b A -> A b | b B -> a B | a Options for the sentence…

Q: Q-1. Consider the given grammars and remove left recursion either direct or indirect. a) A - ABd |…

A: Step 1 The answer is given in the below step

Q: . For the following, prove context free by giving CFG or describe PDA. If not context free then…

A: Since the length of any string w ∈ B is odd, w must have a symbol exactly in themiddle position;…

Q: Consider the following grammar with terminals [, ], a, b, c, +, and -: a) S→ [SX] | a X+SY | Yb | &…

A: To apply the needed rules at the correct position by the parser, first and follow need to be found.

Q: Consider the following languages: a. L = {a2/b/ckU,k 2 1} b. L (a2nb"a"|n 2 1} !3! !! Is L context…

A: a. L is Context free and grammer is: For every b we need 2 a. So we first generate a and b and after…

Q: cassign> cid> cexpr> - A BC cexpr> cid> + cexpr> | cid> cexpr> L(cexpr>

A: Given The answer is given below.

Q: Convert the context-free grammar G in Chomsky Normal Form, where G = (V,T, S,T) with V = {S, A, B,…

Q: e say that a context-free grammar G is mbiguous if every string w in L(G) has more than one…

A: A context free grammar is ambiguous if it has more than one parse tree generated or more than one…

Q: Exercise 3: Consider the set of all strings over (a,b) with n2 0, m 2 0, k20 for L= { a"bc, with…

A: Answer :-

Q: Consider the grammar X--> XY | id Y --> id Check whether the given grammar is LL(1) or not. K and Y…

A: to check the above grammar is LL(1) or not is detailed in step 2.

Q: Let G1 = (V1,T1, S1, P1) and G2 = (V2, T2, S2, P2) be context-free grammars. %3D Consider the…

Q: Find a CFG that generates the language : L = {a ibj c jd i : i, j ≥ 1} and Transform the grammar of…

A: We are going to convert a given context free language into context free grammar and then we will…

Q: Given a CFG G = (V, T, S, P), where P is + ABAC, ВС, + b|A, D|A, d. please find V_N and the…

A: The answer given as below:

Q: Exercisel: Let G be the grammar (V, T, S, P) where V-{a, b, A, B, S}, T-(a,b}, S the start symbol…

A: I'm providing both answers. I hope this will meet your requirements.

Q: the class of context-free languages is closed under star. Let A be a CFL that is generated by the…

A: Answer:- Example to show the failure of closure of Context free language under Star Context free…

Q: Given G, = {V,E, R, S} where V = {0,1, S, A} , E = {0,1} ,and R = {S → AS |e, A → A1 | OA1 | 01 }…

Q: Question 5 KCFG) Define the language in English and RE for the context free grammar below: S- ax |…

A: cfg: It is a context-free grammar a formal grammar which generate all possible patterns of strings…

Q: Qn.5 Let G = (V = {S,T},£ = {a,b}, P, S) be a context-free grammar, whose productions P are defined…

A: Given that, G=(v={S,T}, ∑={a,b}, P,S} is a context free grammar Productions of the grammar are:…

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

Q: Consider the following context free grammar: SAS | b A → SA | a (1) Compute FIRST and FOLLOW for S…

A: The Answer is :-

Q: Q-1. Consider the given grammars and remove left recursion either direct or indirect. b) V- VUx…

A: Remove left recursion in the given grammar

Q: explain in depth and give answer Establish that L is context-free by building a CF grammar for L =…

A: The answer is

Q: What is meant by ambiguous CFG? Prove that the grammar E→E+E/E *E /a is ambiguous.

A: The Answer is

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

A: Introduction :

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: (a) Consider the following context free grammars (CFG): i. B> dBb | bBd | dCb C>aC|E ii. E>FG F>…

A: Left factoring of above grammer is given below

Q: In each case below, given the context-free grammar G, find a CFG G1 in Chomsky normal form…

A: ANSWER:-

Q: Given the following grammar: A-> aA|a|B B -> bB | b Which production rule below represents a correct…

A: Given, A -> aA | a | B B -> bB | b

Q: Consider a grammar with production P: S-SaB | aB, B-bB | A. After removing A- production, the new…

A: Objective: The null production should be eliminated from the given production rules. First, the…

Q: Given a CFG G = (V, T, S, P), where P is + ABAC, BC, b|A, + D|A, d. please find V_N and the…

A: A production that allows a non-terminal to generate the empty string.

Q: Given the following grammar in BNF:→=→X | Y | Z → %|?|→( ) [ a) Change the grammer rules so that!…

A: Step 1 The answer is given in the below step by step;

Q: Consider the grammar, G: S-BSA|ASA|aAble A aAla B BaAlab Identify the nature of the grammar G based…

Q: PROBLEM 7 Find a grammar in CNF equivalent to the grammar S→-S|[S+S]|p] q where T= {~, [, +,], p, q}

A: Step 1 The answer is given in the below step

Question

do now
Consider the following context free grammar:
S-A
A → BC|DBC
B → Bb|e
D → ald
Find the number of unique productions in {Goto (A →
D.BC, B) U Goto (A → .DBC, D)}

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Assumptions ... Alphabet = {a, b} • L1 = { a"b" : n ≥ 0 ^ n mod 3 = 0} L2 = {anbm : n ≥ 0 ^ m ≥ 0 ^ n = m −1} To do in this exercise ... ⚫ Find a context-free grammar G such that L(G) = L1 L2, the concatenation of languages L1 and L2. ⚫ Save your context-free grammar as a JFLAP.jff file, and submit that .jff file to Canvas as your solution to th is exercise.
For each of these languages, give both a context-free grammar and a push down automaton. Briefly explain how your CFG and PDA work. Your CFG should be relatively simple and contain at most 6 variables. For this question, your PDA cannot be directly convertedfrom your CFG (a)L1={ x#y | x is a prefix of yR, and y∈{a,b}* } ,Σ ={a,b,#} Recall that wR is w written backwards, and u is a prefix of v if v=ut for some stringt.For example bb#abb is in L1, but a#ab is not. (b)L2={ aibjck | i ≥ j or j ≥ k } (c)L3 = {w∈{a,b}* | w contains an unequal number of a’s and b’s}
L ::= S ; L L ::= S S ::= print E E ::= id E ::= num Assume that that an implementation of the LR(0) table above always resolves a shift/reduce conflict by shifting rather than reducing. Will this implementation correctly parse strings accepted by the grammar? Explain.
L = {(a^n)(b^m)(c^k) ; n = m or m ≠ k } Find context free grammars (with n, m, k greater than or equal to 0)
Construct, in each case, a DFA/NFA that recognises L(G), where G is a regular grammar with productions (a) S _→ b|aS|aA, A _→ a|aA|bS. (b) S _→ aS|bS|aA, A _→ bB, B _→ aC, C _→ ε. Design NFAs and DFAs that accept the following languages: (a) a+ ∪ b∗a∗ . (b) aa∗(a ∪ b). (c) (a ∪ bb)∗(ba∗ ∪ ε). (d) (ab∗aa ∪ bba∗ab). (e) Complement of (ab ∗ aa ∪ bba∗ab). (f) (aa∗ ∪ aba∗b∗). (g) (a ∪ b)∗b(a ∪ bb)∗ . (h) (abab)∗ ∪ (aaa∗ ∪ b∗). (i) ((aa∗)∗b)∗ . (j) (ab∗a∗) ∪ ((ab)∗ba). (k) (ab∗a∗) ∩ ((ab)∗ba). (l) (a ∪ b)a∗ ∩ baa∗ . (m) (aa ∪ bb)∗(ab ∪ ba)(aa ∪ bb)∗ . (n) (aaa)∗b ∪ (aa)∗b. (o) (a(ab)∗(aa ∪ b) ∪ b(ba)∗(a ∪ bb))∗ .
Let's consider a grammar for expressions is defined as follows.<assign> -> <id> = <expr><id> -> A | B | C | D<expr> -> <id> + <expr> | <id> * <expr> | ( <expr> ) | <id>1. Is this grammar unambiguous? Can you explain in detail?2. How can I design a PDA (PushDown Automata) M that recognizes the BNF (i.e. a metasyntax notation for CFG)?
Show a step-by-step solution. Provide a Regular expression for the following context-free grammar: S→ 1S|0T|ε T→ 0S|1T
Find out each of the tuples of the following Context Free Grammar. Check whether the followingContext Free Grammar is ambiguous or not. Justify your answer.S → a | aAb | abSbA → aAAb | bS
For each of the following CFGS, give a PDA that accepts the language generated by the grammar. (а) S — а ABB | аАА А — аВВ | B >bBB A (b) S aSb |bSa | ab| ba
1)Let G = (V, ∑, R, S) be a grammar with V = {S, H, Gm J}; ∑ = {h, g, j}; and the set of rules: S → H H → h | hJG G → Gg | Sg | HgJ J → jH | HHJ| Jj a)Convert this grammar to a PDA using the method we described. b)Convert G to Chomsky normal form.
Find a CFG that generates the language : L = {a ibj c jd i : i, j ≥ 1} and Transform the grammar of the previous exercise into a CFG in Normal Form of Chomsky
In each case below, given the context-free grammar G, find a CFG G1 inChomsky normal form generating L(G) − {lamda}.a. G has productions S → SS | (S) | Lamdab. G has productions S → S(S) | Lamdac. G has productionsS → AaA | CA | BaB A → aaBa | CDA | aa | DCB → bB | bAB | bb | aS C → Ca | bC | D D → bD | Lamda