[Mary] and her husband [Milton] went to catch an early movie at the theatre. [Nicholas] is proud of his son. His name is [Milton].
('Mary', 'Nicholas')
[Mary] and her husband [Milton] went to catch an early movie at the theatre. [Nicholas] is proud of his son. His name is [Milton].
[{('Mary', 'father-in-law', 'Nicholas'): [('Mary', 'husband', 'Milton'), ('Milton', 'father', 'Nicholas')]}]
['husband', 'father']