[Tina]'s sister, [Mildred], was hectic getting her grandfather, [James], to the airport on time. [James] came to visit his wife [Frances] for lunch today.
('Frances', 'Tina')
[James] came to visit his wife [Frances] for lunch today. [Tina]'s sister, [Mildred], was hectic getting her grandfather, [James], to the airport on time.
[{('Frances', 'granddaughter', 'Tina'): [('Frances', 'granddaughter', 'Mildred'), ('Mildred', 'sister', 'Tina')]}, {('Frances', 'granddaughter', 'Mildred'): [('Frances', 'husband', 'James'), ('James', 'granddaughter', 'Mildred')]}]
['husband', 'granddaughter', 'sister']