[Mary] is so proud of [Bridget] who is the sister of her grandson. [Bridget] took her younger sister [Alberta] to the carnival last weekend.
('Alberta', 'Mary')
[Bridget] took her younger sister [Alberta] to the carnival last weekend. [Mary] is so proud of [Bridget] who is the sister of her grandson.
[{('Alberta', 'grandmother', 'Mary'): [('Alberta', 'sister', 'Bridget'), ('Bridget', 'grandmother', 'Mary')]}]