[Antonio] bought a book for his son [Bernardo]. [Dorothy] does n't always get along with her brother [Antonio]. Sometimes they fight like siblings do. [Harold]'s daughter, [Tracy], was busy caring for her son, [Bernardo], and could n't take his call.
('Harold', 'Dorothy')
[Harold]'s daughter, [Tracy], was busy caring for her son, [Bernardo], and could n't take his call. [Antonio] bought a book for his son [Bernardo]. [Dorothy] does n't always get along with her brother [Antonio]. Sometimes they fight like siblings do.
[{('Harold', 'daughter', 'Dorothy'): [('Harold', 'daughter', 'Tracy'), ('Tracy', 'sister', 'Dorothy')]}, {('Tracy', 'sister', 'Dorothy'): [('Tracy', 'son', 'Bernardo'), ('Bernardo', 'aunt', 'Dorothy')]}, {('Bernardo', 'aunt', 'Dorothy'): [('Bernardo', 'father', 'Antonio'), ('Antonio', 'sister', 'Dorothy')]}]
['daughter', 'son', 'father', 'sister']