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Given a CFG G over {a, b}, G: S -> SAB | a | B |  A -> a | ABa B-> b | ab (a) Prove that G is ambiguous. Will the following strings be generated by G? If yes, show a derivation sequence. If no, do NOT need to explain. (b)  baba (c)  aaaa

Given a CFG G over {a, b}, G: S -> SAB | a | B |  A -> a | ABa B-> b | ab (a) Prove that G is ambiguous. Will the following strings be generated by G? If yes, show a derivation sequence. If no, do NOT need to explain. (b)  baba (c)  aaaa

Database System Concepts
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
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Given a CFG G over {a, b}, G: S -> SAB | a | B | 
A -> a | ABa
B-> b | ab
(a) Prove that G is ambiguous.

Will the following strings be generated by G?
If yes, show a derivation sequence. If no, do NOT need to explain.
(b)  baba

(c)  aaaa

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