Answered: What is the best description of the…

What is the best description of the grammar below? S-> Ab | Bc | epsilon A -> Ab | c B -> c O Nullable O Contracting O Non-contracting O Essentially non-contracting

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

6) Please look at the attached image.

What is the best description of the grammar below?
S -> Ab | Bc | epsilon
A -> Ab | c
B -> c
O Nullable
O Contracting
Non-contracting
O Essentially non-contracting

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