[Nicholas] is the proud father of the beautiful [Mary]. [Mary] has a bitter-sweet relationship with her husband [Milton].
('Milton', 'Nicholas')
[Nicholas] is the proud father of the beautiful [Mary]. [Mary] has a bitter-sweet relationship with her husband [Milton].
[{('Milton', 'father-in-law', 'Nicholas'): [('Milton', 'wife', 'Mary'), ('Mary', 'father', 'Nicholas')]}]
['wife', 'father']