[Amy] and her sister [Lillian] went scuba diving. [Amy]'s daughter [Natalia] did n't go because she ca n't swim.
('Natalia', 'Lillian')
[Amy] and her sister [Lillian] went scuba diving. [Amy]'s daughter [Natalia] did n't go because she ca n't swim.
[{('Natalia', 'aunt', 'Lillian'): [('Natalia', 'mother', 'Amy'), ('Amy', 'sister', 'Lillian')]}]
['mother', 'sister']