====== Family ======
{{tag>family knowledge_base}}
===== Description =====
A biblical family database.


**Source**:  The Art of Prolog
===== Download =====
Program source code: {{family.pl}}
===== Listing =====
<code prolog>
father(terach,abraham).

father(terach,nachor).			

father(terach,haran).			

father(abraham,isaac).			

father(haran,lot).			

father(haran,milcah).			

father(haran,yiscah).



male(terach).

male(abraham).

male(nachor).

male(haran).

male(isaac).

male(lot).



female(sarah).

female(milcah).

female(yiscah).



mother(sarah,isaac).			

						

%Program 1.1: A biblical fa
mily database

</code>
===== Comments =====