please provide clear (step-by-step) explanations andstrictly follow the given sequence (1-2-3) in cleaning the CFGs:1 - ε-productions (first)2 - useless symbols (second)3 - unit productions (third) 1. Please strictly follow sequence (1-2-3) in cleaning the CFGS:1 - E-productions (first)2 - useless symbols (second)3 - unit productions (third)a) S-> BC, A -> a | b, B -> ɛ, C -> DE | ɛ, D -> BAB, E -> cb) S-> BC | DaD | b, A -> aD | bA | c, B -> Cb, C-> aB, D -> bS | ɛc) S-> A | B, A -> aA | aC, B -> bB | bC, C -> cdfF, D -> g | ɛ, E -> h | ɛ, F -> DE

a) 1. There is two null productions B→ε and C→ε removing null variable C, we get…

Answered: 1. Please strictly follow sequence…

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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please provide clear (step-by-step) explanations and
strictly follow the given sequence (1-2-3) in cleaning the CFGs:
1 - ε-productions (first)
2 - useless symbols (second)
3 - unit productions (third)

1. Please strictly follow sequence (1-2-3) in cleaning the CFGS:
1 - E-productions (first)
2 - useless symbols (second)
3 - unit productions (third)
a) S-> BC, A -> a | b, B -> ɛ, C -> DE | ɛ, D -> BAB, E -> c
b) S-> BC | DaD | b, A -> aD | bA | c, B -> Cb, C-> aB, D -> bS | ɛ
c) S-> A | B, A -> aA | aC, B -> bB | bC, C -> cdfF, D -> g | ɛ, E -> h | ɛ, F -> DE

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