[Joshua] made a romantic dinner for his wife [Lynn]. [Cindy] waited for her mother [Frances] to pick her up at the bus stop. While she waited, she called her sister [Lynn] on the phone.
('Joshua', 'Frances')
[Joshua] made a romantic dinner for his wife [Lynn]. [Cindy] waited for her mother [Frances] to pick her up at the bus stop. While she waited, she called her sister [Lynn] on the phone.
[{('Joshua', 'mother-in-law', 'Frances'): [('Joshua', 'wife', 'Lynn'), ('Lynn', 'mother', 'Frances')]}, {('Lynn', 'mother', 'Frances'): [('Lynn', 'sister', 'Cindy'), ('Cindy', 'mother', 'Frances')]}]
['wife', 'sister', 'mother']