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2: 5 -> aSbs | bsas | e (read e as "epsilon") ich grammar(s) produces the set of strings with equal numbers of a's and b's. A. G1 and G2

2: 5 -> aSbs | bsas | e (read e as "epsilon") ich grammar(s) produces the set of strings with equal numbers of a's and b's. A. G1 and G2

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
Problem 1PE
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QUESTION 15 Two CFGS, G1 and G2, are given: G1: S-> as | Sb | alb and (read e as "epsilon") Which grammar(s) produces the set of strings with equal numbers of a's and b's. O A. G1 and G2. G2: S -> aSbs | bsas | e B. Only G1. O C. Only G2. O D. None.
Transcribed Image Text:QUESTION 15 Two CFGS, G1 and G2, are given: G1: S-> as | Sb | alb and (read e as "epsilon") Which grammar(s) produces the set of strings with equal numbers of a's and b's. O A. G1 and G2. G2: S -> aSbs | bsas | e B. Only G1. O C. Only G2. O D. None.
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