[Angelica] does n't like her brother [Ronald]. [Allan] loved his mother, [Marie]. [Angelica] and her brother [Allan] went to the basketball game and had a great time. [Marie] and her husband [Robert] went on a trip to the Netherlands last year.
('Robert', 'Ronald')
[Marie] and her husband [Robert] went on a trip to the Netherlands last year. [Allan] loved his mother, [Marie]. [Angelica] and her brother [Allan] went to the basketball game and had a great time. [Angelica] does n't like her brother [Ronald].
[{('Robert', 'son', 'Ronald'): [('Robert', 'son', 'Allan'), ('Allan', 'brother', 'Ronald')]}, {('Allan', 'brother', 'Ronald'): [('Allan', 'sister', 'Angelica'), ('Angelica', 'brother', 'Ronald')]}, {('Robert', 'son', 'Allan'): [('Robert', 'wife', 'Marie'), ('Marie', 'son', 'Allan')]}]
['wife', 'son', 'sister', 'brother']