[Mildred] chose to go stay with her grandmother, [Frances] while [Mildred]'s brother, [Irvin] was out of town. [Tina] and her brother [Irvin] went to the basketball game and had a great time.
('Frances', 'Tina')
[Mildred] chose to go stay with her grandmother, [Frances] while [Mildred]'s brother, [Irvin] was out of town. [Tina] and her brother [Irvin] went to the basketball game and had a great time.
[{('Frances', 'granddaughter', 'Tina'): [('Frances', 'grandson', 'Irvin'), ('Irvin', 'sister', 'Tina')]}, {('Frances', 'grandson', 'Irvin'): [('Frances', 'granddaughter', 'Mildred'), ('Mildred', 'brother', 'Irvin')]}]
['granddaughter', 'brother', 'sister']