[Lena] and [Wesley] were waiting for their daughter [Pamela] to arrive. Finally, [Lena]'s daughter [Martha] called. She told [Lena] that [Pamela] had been in a minor car accident, and would n't be able to make it over.
('Wesley', 'Martha')
[Lena] and [Wesley] were waiting for their daughter [Pamela] to arrive. Finally, [Lena]'s daughter [Martha] called. She told [Lena] that [Pamela] had been in a minor car accident, and would n't be able to make it over.
[{('Wesley', 'daughter', 'Martha'): [('Wesley', 'daughter', 'Pamela'), ('Pamela', 'sister', 'Martha')]}, {('Pamela', 'sister', 'Martha'): [('Pamela', 'mother', 'Lena'), ('Lena', 'daughter', 'Martha')]}]
['daughter', 'mother', 'daughter']