[Frances] asked her grandmother [Wilhelmina] if she had spoken to her sister [Anna] recently. [Pete]'s sister [Anna] asked him for some help planting her garden.
('Frances', 'Pete')
[Frances] asked her grandmother [Wilhelmina] if she had spoken to her sister [Anna] recently. [Pete]'s sister [Anna] asked him for some help planting her garden.
[{('Frances', 'grandson', 'Pete'): [('Frances', 'granddaughter', 'Anna'), ('Anna', 'brother', 'Pete')]}, {('Frances', 'granddaughter', 'Anna'): [('Frances', 'granddaughter', 'Wilhelmina'), ('Wilhelmina', 'sister', 'Anna')]}]
['granddaughter', 'sister', 'brother']