[Lorraine] and her sister [Heidi] take a trip to Montana. [Heidi]'s grandmother [Ashley] has a vacation home there.
('Ashley', 'Lorraine')
[Lorraine] and her sister [Heidi] take a trip to Montana. [Heidi]'s grandmother [Ashley] has a vacation home there.
[{('Ashley', 'granddaughter', 'Lorraine'): [('Ashley', 'granddaughter', 'Heidi'), ('Heidi', 'sister', 'Lorraine')]}]
['granddaughter', 'sister']