Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
Consider the following prolog
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).
Write a prolog rule to identify siblings. The rule sibling/2 receives two arguments
and verifies if they are siblings or not.
Two distinct persons are siblings if they have a common parent. A person is not a sibling of self.
Example:
?- sibling(kendall, roman)
true
?- sibling(kendall, tom)
false
?- sibling(kendall, kendall)
false
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