[Nicholas] was waiting patiently for his wife, [Amy]. [Amy] loves to make cookies for her son. His name is [Glen].
('Nicholas', 'Glen')
[Nicholas] was waiting patiently for his wife, [Amy]. [Amy] loves to make cookies for her son. His name is [Glen].
[{('Nicholas', 'son', 'Glen'): [('Nicholas', 'wife', 'Amy'), ('Amy', 'son', 'Glen')]}]
['wife', 'son']