Answered: schoolgirls sat for an examination.…

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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Prolog Problem

Five schoolgirls sat for an examination. Their parents - so they thought - showed an undue degree of interest in the result. They, therefore, agreed that, in writing home about the examination, each girl should make one true statement and one untrue one. The following are the relevant passages from their letters:

Betty

Kitty was 2nd

I was 3rd

Ethel

I was on top

Joan was 2nd

Joan

I was 3rd
Ethel was last

Kitty

I came out 2nd

Mary was only 4th

Mary

I was 4th
Betty was 1st

Write a prolog program to solve this puzzle. A completely working solution is required, i.e. all or nothing proposition.

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