Subversion Repositories programming

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107 ira 1 
mother(charles,elizabeth).
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father(charles,phillip).
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mother(andrew,elizabeth).
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father(andrew,phillip).
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mother(edward,elizabeth).
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father(edward,phillip).
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mother(william,diana).
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father(william,charles).
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mother(harry,diana).
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father(harry,charles).
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mother(elizabeth,elizabeth_tqm).
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father(elizabeth,george).
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grandfather(X,Y) :- father(X,Z),father(Z,Y).
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grandfather(X,Y) :- mother(X,Z),father(Z,Y).
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