[Amy] takes her son [Dennis] to the park every Saturday. [Dennis] went to visit his aunt [Theresa] over the holiday and she gave him a present.
('Amy', 'Theresa')
[Amy] takes her son [Dennis] to the park every Saturday. [Dennis] went to visit his aunt [Theresa] over the holiday and she gave him a present.
[{('Amy', 'sister', 'Theresa'): [('Amy', 'son', 'Dennis'), ('Dennis', 'aunt', 'Theresa')]}]
['son', 'aunt']