[Lena] and her mother [Frances] attended a play at the theater. [Don] was enjoying the delicious meal prepared by his mother [Lynn]. [Lynn] was celebrating her birthday with her mother [Frances].
('Don', 'Lena')
[Don] was enjoying the delicious meal prepared by his mother [Lynn]. [Lynn] was celebrating her birthday with her mother [Frances]. [Lena] and her mother [Frances] attended a play at the theater.
[{('Don', 'aunt', 'Lena'): [('Don', 'mother', 'Lynn'), ('Lynn', 'sister', 'Lena')]}, {('Lynn', 'sister', 'Lena'): [('Lynn', 'mother', 'Frances'), ('Frances', 'daughter', 'Lena')]}]
['mother', 'mother', 'daughter']