[James] and his wife [Frances] wanted to take their grandchildren on vacation. Their granddaughter [Natasha] could not wait to go, but her sister [Anna] had to go to school instead.
('Frances', 'Anna')
[James] and his wife [Frances] wanted to take their grandchildren on vacation. Their granddaughter [Natasha] could not wait to go, but her sister [Anna] had to go to school instead.
[{('Frances', 'granddaughter', 'Anna'): [('Frances', 'granddaughter', 'Natasha'), ('Natasha', 'sister', 'Anna')]}, {('Frances', 'granddaughter', 'Natasha'): [('Frances', 'husband', 'James'), ('James', 'granddaughter', 'Natasha')]}]
['husband', 'granddaughter', 'sister']