Answered: ) Write a prolog query to indicate…

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

Consider the following prolog database:

married (logan, marcia),
parent (logan, connor),
parent (logan, kendall).
parent (logan, roman).
parent (logan, siobhan).
dating(connor, willa).
married(kendall, rava).
dating( roman, grace).
married(tom, siobhan)
parent (caroline, kendall),
parent (caroline, roman).
parent (caroline, siobhan).

A) Write a prolog query to indicate whether two persons are in-relation or not.
Two persons are in relation if they are married or they are dating.
Example:
?- inrelation(tom, siobhan)
true
?- inrelation(logan, caroline)
false

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