Exercise 4:Consider the following CFG grammar:aABeSA→B-Abc | bdwhere 'a', 'b', 'c' and 'd' are terminals, and 'S' (start symbol), 'A' and 'B' are non-terminals.a) Parse the sentence "abbcde" using right-most derivations.b) Parse the sentence "abbcde" using left-most derivations.c) Draw the parse tree.

A derivation tree represents the process of deriving a string from the start symbol by applying the…

Answered: Exercise 4: Consider the following CFG…

Exercise 4: Consider the following CFG grammar: SaABe Abc b A→ B-d where 'a', 'b', 'c' and 'd' are terminals, and 'S' (start symbol), 'A' and 'B' are non-terminals.

Database System Concepts

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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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Exercise 4:
Consider the following CFG grammar:
aABe
S
A→
B-
Abc | b
d
where 'a', 'b', 'c' and 'd' are terminals, and 'S' (start symbol), 'A' and 'B' are non-terminals.
a) Parse the sentence "abbcde" using right-most derivations.
b) Parse the sentence "abbcde" using left-most derivations.
c) Draw the parse tree.

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Derivation tree

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a) Performing rightmost derivation to obtain the string “abbcde”

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b) Performing leftmost derivation to obtain the string "abbcde"

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c) Parse tree for the string "abbcde"

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