[Nancy] visited her mother [Ashley] and introduced her newborn daughter [Heidi] to her.
('Heidi', 'Ashley')
[Nancy] visited her mother [Ashley] and introduced her newborn daughter [Heidi] to her.
[{('Heidi', 'grandmother', 'Ashley'): [('Heidi', 'mother', 'Nancy'), ('Nancy', 'mother', 'Ashley')]}]
['mother', 'mother']