[Tracy] has a son named [Bernardo]. [Bettie]'s uncle, [Robert], bought her a pony. [Bettie] is so thrilled! [Tracy] cooked her son [Bernardo] his favorite meal yesterday because it was his birthday. [Bernardo] is a factory worker. He has a wonderful sister by the name of [Bettie].
('Bernardo', 'Robert')
[Tracy] cooked her son [Bernardo] his favorite meal yesterday because it was his birthday. [Tracy] has a son named [Bernardo]. [Bernardo] is a factory worker. He has a wonderful sister by the name of [Bettie]. [Bettie]'s uncle, [Robert], bought her a pony. [Bettie] is so thrilled!
[{('Bernardo', 'uncle', 'Robert'): [('Bernardo', 'mother', 'Tracy'), ('Tracy', 'brother', 'Robert')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'daughter', 'Bettie'), ('Bettie', 'uncle', 'Robert')]}, {('Tracy', 'daughter', 'Bettie'): [('Tracy', 'son', 'Bernardo'), ('Bernardo', 'sister', 'Bettie')]}]
['mother', 'son', 'sister', 'uncle']