[Robert] and his sister [Tracy] went to brunch today at the new diner. [Robert] loves his wife [Marie]. [Elsie] is so happy to have [Marie] for a mother. [Allan] took his sister [Elsie] out to dinner for her birthday.
('Tracy', 'Allan')
[Robert] and his sister [Tracy] went to brunch today at the new diner. [Robert] loves his wife [Marie]. [Elsie] is so happy to have [Marie] for a mother. [Allan] took his sister [Elsie] out to dinner for her birthday.
[{('Tracy', 'nephew', 'Allan'): [('Tracy', 'brother', 'Robert'), ('Robert', 'son', 'Allan')]}, {('Robert', 'son', 'Allan'): [('Robert', 'wife', 'Marie'), ('Marie', 'son', 'Allan')]}, {('Marie', 'son', 'Allan'): [('Marie', 'daughter', 'Elsie'), ('Elsie', 'brother', 'Allan')]}]
['brother', 'wife', 'daughter', 'brother']