[Lena] took her daughter [Martha] to see her very first ballet performance. [Pamela] was mostly raised by her mother, [Lena] and grandfather, [James].
('Martha', 'James')
[Lena] took her daughter [Martha] to see her very first ballet performance. [Pamela] was mostly raised by her mother, [Lena] and grandfather, [James].
[{('Martha', 'grandfather', 'James'): [('Martha', 'sister', 'Pamela'), ('Pamela', 'grandfather', 'James')]}, {('Martha', 'sister', 'Pamela'): [('Martha', 'mother', 'Lena'), ('Lena', 'daughter', 'Pamela')]}]
['mother', 'daughter', 'grandfather']