[Clarence]'s daughter, [Lillian], wanted to get a nice gift for her sister, [Amy].
('Clarence', 'Amy')
[Clarence]'s daughter, [Lillian], wanted to get a nice gift for her sister, [Amy].
[{('Clarence', 'daughter', 'Amy'): [('Clarence', 'daughter', 'Lillian'), ('Lillian', 'sister', 'Amy')]}]
['daughter', 'sister']