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

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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