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UGC NET CSE | December 2015 | Part 3 | Question: 7

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4 4 votes

Given the following set of prolog clauses:

father(X,Y) :
parent(X,Y),
male(X),
parent(Sally, Bob),
parent(Jim, Bob),
parent(Alice, Jane),
male(Bob),
male(Jim),
female(Salley),
female(Alice)

How many atoms are matched to the variable 'X' before the query father(X, Jane) reports a Result?

  1. $1$
  2. $2$
  3. $3$
  4. $4$

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