Read the file "English/reasoning/family/family definition".
John is a parent.
Pete is a parent.
Joe is a child of John.
Anna is the mother of Paul.
Anna is a mother.
James was the father of Peter.

John is a parent.
Pete is a parent.
Joe is a child of John.
Anna is the mother of Paul.
Anna is a mother.
James was the father of Peter.
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