[Nancy] likes to cut the hair of her daughter [Heidi]. [Heidi]'s sister [Lorraine] went to beauty school and taught them all how to cut hair expertly.
('Nancy', 'Lorraine')
[Nancy] likes to cut the hair of her daughter [Heidi]. [Heidi]'s sister [Lorraine] went to beauty school and taught them all how to cut hair expertly.
[{('Nancy', 'daughter', 'Lorraine'): [('Nancy', 'daughter', 'Heidi'), ('Heidi', 'sister', 'Lorraine')]}]
['daughter', 'sister']