[Irvin] loves his sister, [Mildred] very much. [Mildred] is just like her sister, [Tina]. [Frances] loves to make candy for her granddaughter. Her name is [Tina].
('Frances', 'Irvin')
[Frances] loves to make candy for her granddaughter. Her name is [Tina]. [Irvin] loves his sister, [Mildred] very much. [Mildred] is just like her sister, [Tina].
[{('Frances', 'grandson', 'Irvin'): [('Frances', 'granddaughter', 'Tina'), ('Tina', 'brother', 'Irvin')]}, {('Tina', 'brother', 'Irvin'): [('Tina', 'sister', 'Mildred'), ('Mildred', 'brother', 'Irvin')]}]
['granddaughter', 'sister', 'brother']