Q2. Consider the following Context Free Grammar (CFG) S- Aa | BAb A BB | c B → Sd |e where {a, b, c, d, e} is the set of terminal symbols. a. Give a right-most derivation of ecadeb. b. Give a left-most derivation of ecadeb.

Q2. Consider the following Context Free Grammar (CFG) S- Aa | BAb A BB | c B → Sd |e where {a, b, c, d, e} is the set of terminal symbols. a. Give a right-most derivation of ecadeb. b. Give a left-most derivation of ecadeb.

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

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Q2. Consider the following Context Free Grammar (CFG)
S - Aa | BAb
A - BB | c
B - Sd e
where {a, b, c, d, e} is the set of terminal symbols.
a. Give a right-most derivation of ecadeb.
b. Give a left-most derivation of ecadeb.
c. Compute FIRST and FOLLOW for this grammar?
d. Discuss whether CFG is ambiguous or not and draw the parsing tree?

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