[Tracy] loves her daughter [Erika]. [Erika], however. does n't get along with her sister [Bettie]. [Robert] and her sister [Beverly] decided to take a trip to Mexico together. [Beverly] likes to make mini pies for her niece, [Bettie].
('Tracy', 'Robert')
[Tracy] loves her daughter [Erika]. [Erika], however. does n't get along with her sister [Bettie]. [Beverly] likes to make mini pies for her niece, [Bettie]. [Robert] and her sister [Beverly] decided to take a trip to Mexico together.
[{('Tracy', 'brother', 'Robert'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'brother', 'Robert')]}, {('Tracy', 'sister', 'Beverly'): [('Tracy', 'daughter', 'Bettie'), ('Bettie', 'aunt', 'Beverly')]}, {('Tracy', 'daughter', 'Bettie'): [('Tracy', 'daughter', 'Erika'), ('Erika', 'sister', 'Bettie')]}]
['daughter', 'sister', 'aunt', 'brother']