[Nicholas] was eating dinner with his wife [Amy]. [Milton] loved his mother, [Amy].
('Nicholas', 'Milton')
[Nicholas] was eating dinner with his wife [Amy]. [Milton] loved his mother, [Amy].
[{('Nicholas', 'son', 'Milton'): [('Nicholas', 'wife', 'Amy'), ('Amy', 'son', 'Milton')]}]
['wife', 'son']