[Lena] was celebrating her birthday with her mother [Frances]. [Lynn] is taking a trip to see her sister [Lena]. [Don] made his moth [Lynn] a mother's day gift at school.
('Don', 'Frances')
[Don] made his moth [Lynn] a mother's day gift at school. [Lynn] is taking a trip to see her sister [Lena]. [Lena] was celebrating her birthday with her mother [Frances].
[{('Don', 'grandmother', 'Frances'): [('Don', 'mother', 'Lynn'), ('Lynn', 'mother', 'Frances')]}, {('Lynn', 'mother', 'Frances'): [('Lynn', 'sister', 'Lena'), ('Lena', 'mother', 'Frances')]}]
['mother', 'sister', 'mother']