[Ashley]'s son [George] called her on the phone to tell her that his daughter [Ann] was born.
('Ann', 'Ashley')
[Ashley]'s son [George] called her on the phone to tell her that his daughter [Ann] was born.
[{('Ann', 'grandmother', 'Ashley'): [('Ann', 'father', 'George'), ('George', 'mother', 'Ashley')]}]
['father', 'mother']