[Tracy] was mad at her brother [Louis], because [Louis] had called her fat. [Robert] hit his brother [Louis] in the head. [Marie] married [Robert], and she gave birth to a beautiful daughter named [Elsie].
('Tracy', 'Elsie')
[Tracy] was mad at her brother [Louis], because [Louis] had called her fat. [Robert] hit his brother [Louis] in the head. [Marie] married [Robert], and she gave birth to a beautiful daughter named [Elsie].
[{('Tracy', 'niece', 'Elsie'): [('Tracy', 'brother', 'Robert'), ('Robert', 'daughter', 'Elsie')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'brother', 'Louis'), ('Louis', 'brother', 'Robert')]}, {('Robert', 'daughter', 'Elsie'): [('Robert', 'wife', 'Marie'), ('Marie', 'daughter', 'Elsie')]}]
['brother', 'brother', 'wife', 'daughter']