[Clarence] took his daughter [Theresa] to see a movie. [Theresa]'s sister [Amy] was sad because she was grounded and was not allowed to go.
('Clarence', 'Amy')
[Clarence] took his daughter [Theresa] to see a movie. [Theresa]'s sister [Amy] was sad because she was grounded and was not allowed to go.
[{('Clarence', 'daughter', 'Amy'): [('Clarence', 'daughter', 'Theresa'), ('Theresa', 'sister', 'Amy')]}]
['daughter', 'sister']