Can you help me solve this problem? Consider the following grammar (given in Chomsky normal form):SABABS | bBSA | aa. The shortest string generated by this grammar is ba. The shortest strings not generated bythis grammar are €, a, and b. Give the next two shortest strings generated by this grammar,and two other short strings not generated by this grammar.b. Draw the parse tree given this grammar for the string bbaaba.c. Find a long path -- eg, with 5 nonterminals -- from the root to a leaf in your parse tree.Starting at the bottom of that path, find the first nonterminal that appears twice along thepath. Circle the two occurrences of the repeated nonterminal, and draw an outline aroundthe subtree generated by the lower occurrence and an outline around the subtreegenerated by the upper occurrence. In accordance with the Pumping Lemma for the CFLsand given the string z = bbaaba, what are the values of the 5 substrings U, V, W, X, Ydetermined by the subtrees you have indicated? Be sure to give a value (even if just €) foreach of the 5 variables.

Detailed explanation: Let's break down each part of the problem:a. The next two shortest strings…

Answered: Consider the following grammar (given…

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

Similar questions

1. Consider the grammar with productions S -> aABb, A -> bB, B -> A | λ. (a) Give a leftmost derivation of the string abbb. (b) Draw a derivation tree that yields the string abbb. (c) Prove that the grammar is ambiguous by providing a different leftmost derivation of the string abbb from that you give in (a)
Consider the following grammar: X -> (Y) | b Y -> Y, X | X 1. for the input string ((b),b,(b,b)),show the parsing stack and actions of the parsing SLR(1) parser. 2. Is this grammar an LR(0) grammar? If not, describe the LR(0) conflict. If so, construct the LR(0) parsing table, and describe how a parse might differ from an SLR(1) parse.
Consider the context-free grammar G = (V, T, S, P), where V = {S, A}, T = {a, b}, and P consists of S → aSb | aAb, A → aA | λ. a. Show the derivation tree resulting from top-down parsing of the string aaaabb. b. Show the leftmost derivation of the string aaaabb.
Consider the following context-free grammar:G = (N, Σ, P, S)N = {S, T}Σ = {a, b, c}Productions in P are:S →aSaS →TT →bTT →TcT →ε(4.a) Write down a derivation of the string abbca from the grammar G.(4.b) Draw a parse tree corresponding to the derivation from part a).(4.c) Is the grammar G ambiguous? Explain your answer.
In Example 6.1, show a derivation tree for the string ababbac, using both the original and the modified grammar. EXAMPLE 6.1 Consider G = ({A, B}, {a, b, c}, A, P) with productions A→a|aaA|abBc,B→abbA|b.A→a|aaA|abBc,B→abbA|b. Using the suggested substitution for the variable B, we get the grammar Ĝ with productions A→a|aaA|ababbAc|abbc,B→abbA|b.A→a|aaA|ababbAc|abbc,B→abbA|b. The new grammar Ĝ is equivalent to G. The string aaabbc has the derivation A ⇒ aaA ⇒ aaabBc ⇒ aaabbc in G, and the corresponding derivation A ⇒ aaA ⇒ aaabbc in Ĝ. Notice that, in this case, the variable B and its associated productions are still in the grammar even though they can no longer play a part in any derivation. We will next show how such unnecessary productions can be removed from a grammar.
Let be the following LL(1) grammar with empty rules: a-) Prove that it is an LL(1) grammar with empty rules.b-) Build the recognition table.c-) Test step by step if it is possible to recognize the string abbc#.
Consider the following two grammars. (a) 1 start --> E$ 2. E --> ( E plus E 3. E ---.> num (b) 1. Start --> E $ 2. E ---> E ( plus E 3. E --> num which of these grammars, if any, is ambiguous? prove your answer by showing two distinct derivations of same input string for the ambiguous grammar(s).
for the grammars below, determine if they're ambiguous; and if a grammar is ambiguous, find a string that demonstrates the ambiguity and also draw two different parse trees for the string: a) S → aSa | bSb | cSc | a | b | c | ε b) S → ε | ab | ba | aSb | bSa c) S → aSb | C C → ε | c | Cc
Consider the following grammar: X -> (Y) | bY -> Y, X | XA: . List LR(0) items for this grammarb. construct the DFA of these LR(0) itemsc. construct the SLR(1) parsing tabled. for the input string ((b),b,(b,b)),show the parsing stack and actions of the parsing SLR(1) parser.e. Is this grammar an LR(0) grammar? If not, describe the LR(0) conflict. If so, construct the LR(0) parsing table, and describe how a parse might differ from an SLR(1) parse. pay attention to the grammar given
Consider the following Grammar E → E + E E → E - E E → id Check whether the given grammar is ambiguous or not using left most derivation and right most derivation with Parse Tree?
(20 Points) Consider the following grammars where S is the start symbol and a, b, and c are terminal symbols and A, B, and C are non-terminal symbols.S ---> aA | bB | cCA --> aA | aB | aB --> bB | bC | bC --> cC | cExplain in your own words what the grammar generates. Which of the following sentences are in the language generated by the grammar? Show derivations. If a sentence cannot be generated by the grammar, explain why abcabcab aaaaaabb cccccaaaa bbbbbbbc aaaaaaccc
Prove that the grammar below is ambiguous or not with given the sentence c@dc (showing the step) <A> → <A><A> <A> → <B>@ | <@><B> | <B> <B> → a | b | c | d After that, change the grammar so that the tree only expand to the left (left associativity) and draw the parse tree.

SEE MORE QUESTIONS

Recommended textbooks for you

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

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

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

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

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

C How to Program (8th Edition)

Computer Science

ISBN:

9780133976892

Author:

Paul J. Deitel, Harvey Deitel

Publisher:

PEARSON

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781337627900

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Programmable Logic Controllers

Computer Science

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

SEE MORE TEXTBOOKS