[Ashley] is the mother of a son named [Nicholas]. [Mary] took a photo of her father [Nicholas] for the family album.
('Mary', 'Ashley')
[Mary] took a photo of her father [Nicholas] for the family album. [Ashley] is the mother of a son named [Nicholas].
[{('Mary', 'grandmother', 'Ashley'): [('Mary', 'father', 'Nicholas'), ('Nicholas', 'mother', 'Ashley')]}]
['father', 'mother']