[Janet] took her mother [Lillian] to the doctor. Later, [Lillian] told her sister [Theresa] what the doctor said.
('Janet', 'Theresa')
[Janet] took her mother [Lillian] to the doctor. Later, [Lillian] told her sister [Theresa] what the doctor said.
[{('Janet', 'aunt', 'Theresa'): [('Janet', 'mother', 'Lillian'), ('Lillian', 'sister', 'Theresa')]}]
['mother', 'sister']