[Bettie] and her brother [Aaron] watched TV together. [Bernardo] was invited to watch too, because [Bettie] is his sister. [Bobby]'s brother [Bernardo] came over to help him renovate the kitchen. [Tracy], [Bobby]'s mother, brought over a home-made lunch.
('Tracy', 'Aaron')
[Bobby]'s brother [Bernardo] came over to help him renovate the kitchen. [Tracy], [Bobby]'s mother, brought over a home-made lunch. [Bettie] and her brother [Aaron] watched TV together. [Bernardo] was invited to watch too, because [Bettie] is his sister.
[{('Tracy', 'son', 'Aaron'): [('Tracy', 'son', 'Bernardo'), ('Bernardo', 'brother', 'Aaron')]}, {('Tracy', 'son', 'Bernardo'): [('Tracy', 'son', 'Bobby'), ('Bobby', 'brother', 'Bernardo')]}, {('Bernardo', 'brother', 'Aaron'): [('Bernardo', 'sister', 'Bettie'), ('Bettie', 'brother', 'Aaron')]}]
['son', 'brother', 'sister', 'brother']