[Pamela] is taking a trip to see her sister [Martha]. [Lena] is getting married. She is looking forward to her sister, [Lynn], attending. They have n't seen each other since [Lynn] relocated to California with her husband 3 years ago. [Lena] took her daughter [Martha] to see her very first ballet performance.
('Pamela', 'Lynn')
[Pamela] is taking a trip to see her sister [Martha]. [Lena] took her daughter [Martha] to see her very first ballet performance. [Lena] is getting married. She is looking forward to her sister, [Lynn], attending. They have n't seen each other since [Lynn] relocated to California with her husband 3 years ago.
[{('Pamela', 'aunt', 'Lynn'): [('Pamela', 'mother', 'Lena'), ('Lena', 'sister', 'Lynn')]}, {('Pamela', 'mother', 'Lena'): [('Pamela', 'sister', 'Martha'), ('Martha', 'mother', 'Lena')]}]
['sister', 'mother', 'sister']