[Harold] loves spending time with his grandson [Aaron]. [Aaron] and [Harold] go the the park a lot. [Bettie]'s mother, [Tracy], wrote her son [Bernardo] a letter. She asked how [Bernardo] and his brother [Aaron] were doing.
('Bettie', 'Harold')
[Bettie]'s mother, [Tracy], wrote her son [Bernardo] a letter. She asked how [Bernardo] and his brother [Aaron] were doing. [Harold] loves spending time with his grandson [Aaron]. [Aaron] and [Harold] go the the park a lot.
[{('Bettie', 'grandfather', 'Harold'): [('Bettie', 'brother', 'Aaron'), ('Aaron', 'grandfather', 'Harold')]}, {('Bettie', 'brother', 'Aaron'): [('Bettie', 'brother', 'Bernardo'), ('Bernardo', 'brother', 'Aaron')]}, {('Bettie', 'brother', 'Bernardo'): [('Bettie', 'mother', 'Tracy'), ('Tracy', 'son', 'Bernardo')]}]
['mother', 'son', 'brother', 'grandfather']