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
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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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.
Transcribed Image Text: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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