[Mary] and [Milton] have a strong relationship. They have been married for ten years. [Amy] read her son [Milton] a bedtime story every night.
('Amy', 'Mary')
[Amy] read her son [Milton] a bedtime story every night. [Mary] and [Milton] have a strong relationship. They have been married for ten years.
[{('Amy', 'daughter-in-law', 'Mary'): [('Amy', 'son', 'Milton'), ('Milton', 'wife', 'Mary')]}]
['son', 'wife']