[Robert] is taking his daughter [Lizzie] out for lunch at her favorite restaurant. [Lizzie] was playing hide-and-seek with her sister [Angelica]. [Angelica] went on a vacation with her brother [Ronald]. [Antonio] took his nephew [Ronald] to the park to teach him how to ride a bike.
('Robert', 'Antonio')
[Robert] is taking his daughter [Lizzie] out for lunch at her favorite restaurant. [Lizzie] was playing hide-and-seek with her sister [Angelica]. [Angelica] went on a vacation with her brother [Ronald]. [Antonio] took his nephew [Ronald] to the park to teach him how to ride a bike.
[{('Robert', 'brother', 'Antonio'): [('Robert', 'son', 'Ronald'), ('Ronald', 'uncle', 'Antonio')]}, {('Robert', 'son', 'Ronald'): [('Robert', 'daughter', 'Angelica'), ('Angelica', 'brother', 'Ronald')]}, {('Robert', 'daughter', 'Angelica'): [('Robert', 'daughter', 'Lizzie'), ('Lizzie', 'sister', 'Angelica')]}]
['daughter', 'sister', 'brother', 'uncle']