[Marie] had her son [Allan] and her daughter [Michelle] over for Sunday brunch. [Michelle]'s father [Robert] had to work so he ccould n't join them. [Elsie] needed to ask her father [Robert] for a loan.
('Elsie', 'Allan')
[Elsie] needed to ask her father [Robert] for a loan. [Marie] had her son [Allan] and her daughter [Michelle] over for Sunday brunch. [Michelle]'s father [Robert] had to work so he ccould n't join them.
[{('Elsie', 'brother', 'Allan'): [('Elsie', 'father', 'Robert'), ('Robert', 'son', 'Allan')]}, {('Robert', 'son', 'Allan'): [('Robert', 'daughter', 'Michelle'), ('Michelle', 'brother', 'Allan')]}, {('Michelle', 'brother', 'Allan'): [('Michelle', 'mother', 'Marie'), ('Marie', 'son', 'Allan')]}]
['father', 'daughter', 'mother', 'son']