[Robert] was so proud of his daughter, [Lizzie], graduating at the top of her class. [Elsie] loves hanging out with her uncle [Pedro]. [Beverly] gave her brother [Robert] a new sweater for Christmas. [Lizzie] was talking about food with her sister [Elsie].
('Beverly', 'Pedro')
[Beverly] gave her brother [Robert] a new sweater for Christmas. [Robert] was so proud of his daughter, [Lizzie], graduating at the top of her class. [Lizzie] was talking about food with her sister [Elsie]. [Elsie] loves hanging out with her uncle [Pedro].
[{('Beverly', 'brother', 'Pedro'): [('Beverly', 'brother', 'Robert'), ('Robert', 'brother', 'Pedro')]}, {('Robert', 'brother', 'Pedro'): [('Robert', 'daughter', 'Elsie'), ('Elsie', 'uncle', 'Pedro')]}, {('Robert', 'daughter', 'Elsie'): [('Robert', 'daughter', 'Lizzie'), ('Lizzie', 'sister', 'Elsie')]}]
['brother', 'daughter', 'sister', 'uncle']