[Anna] loves her brother [Pete]. [James] is the proud father of [Cindy]. [Cindy] is the mother of [Pete] the traitor.
('Anna', 'James')
[Anna] loves her brother [Pete]. [James] is the proud father of [Cindy]. [Cindy] is the mother of [Pete] the traitor.
[{('Anna', 'grandfather', 'James'): [('Anna', 'brother', 'Pete'), ('Pete', 'grandfather', 'James')]}, {('Pete', 'grandfather', 'James'): [('Pete', 'mother', 'Cindy'), ('Cindy', 'father', 'James')]}]
['brother', 'mother', 'father']