Write a
PROLOG program for Family Relationship.
MOTILAL (SWARUPMATI)
JAVAHARLAL VIJYALAKSHMI KRISHNA
(KAMLA) (RANJIT)
INDIRA
(FIROZ)
TARA LEKHA RITA
SANJAY RAJIV
VARUN
RAHUL PRIYANKA
father
("Motilal","Jawaharlal").
father
("Motilal","Vijayalakshmi").
father
("Motilal","Krishna").
father
("Jawaharlal","Indira").
father
("Ranjit","Tara").
father
("Ranjit","Lekha").
father
("Ranjit","Rita").
father
("Feroz","Sanjay").
father
("Feroz","Rajiv").
father
("Sanjay","Varun").
father
("Rajiv","Rahul").
father
("Rajiv","Priyanka").
wife_of("Swaruprani","Motilal").
wife_of("Kamla","Jawaharlal").
wife_of("Vijayalakshmi","Ranjit").
wife_of("Indira","Feroz").
wife_of("Maneka","Sanjay").
wife_of("Sonia","Rajiv").
female("Krishna").
female("Priyanka").
female("Lekha").
female("Tara").
female("Rita").
female(X) :-
wife_of (X,_).
male("Varun").
male("Rahul").
male(X) :-
husband_of (X,_).
husband_of(X,Y) :-
wife_of (Y,X).
mother(X,Y):-
wife_of (X,Z),
father(Z,Y).
parent(X,Y):-
father(X,Y);
mother(X,Y).
child(X,Y):-
parent(Y,X).
son(X,Y):-
child(X,Y),
male(X).
daughter(X,Y):-
child(X,Y),
female(X).
brother(X,Y):-
father(Z,X),
father(Z,Y),
male(X),
not
(X=Y).
sister(X,Y):-
father(Z,X),
father(Z,Y),
female(X),
not
(X=Y).
uncle (X,Y):-
parent(Z,Y),
brother(X,Z);
parent(Z,Y),
sister(S,Z),
husband_of(X,S).
aunt (X,Y):-
sister(X,Z),
parent(Z,Y).
aunt (X,Y):-
wife_of(X,Z),
uncle(Z,Y).
ancestor(X,Y):-
parent(X,Y).
ancestor(X,Y):-
parent(Z,Y),
ancestor(X,Z).
grand_father(X,Y):-
parent(X,Z),
parent(Z,Y),
male(X).
grand_mother(X,Y):-
parent(X,Z),
parent(Z,Y),
female(X).
cousin(X,Y):-
parent(Z,X),
parent(W,Y),
brother(Z,W);
parent(Z,X);
parent(W,Y),
sister(Z,W).
nephew(X,Y):-
male(X),
uncle(Y,X);
male(X),
aunt(Y,X).
niece(X,Y):-
female(X),
uncle(Y,X);
female(X),
aunt(Y,X).
OUTPUT:
18 ?- consult('pract1').
% pract1 compiled 0.02 sec, 452
bytes
true.
19 ?-
grand_father('Motilal','Indira').
true
.
20 ?- grand_father(X,'Indira').
X = 'Motilal' ;
false.
21 ?- sister(X,Y).
X = 'Vijayalakshmi',
Y = 'Jawaharlal' ;
X = 'Vijayalakshmi',
Y = 'Krishna' ;
X = 'Krishna',
Y = 'Jawaharlal' ;
X = 'Krishna',
Y = 'Vijayalakshmi' ;
X = 'Tara',
Y = 'Lekha' ;
X = 'Tara',
Y = 'Rita' ;
X = 'Lekha',
Y = 'Tara' ;
X = 'Lekha',
Y = 'Rita'
