[Kevin] was so excited to introduce his new girlfriend to his mother, [Nancy]. [Wayne] loves to cook for his lovely wife. Her name is [Nancy].
('Wayne', 'Kevin')
[Wayne] loves to cook for his lovely wife. Her name is [Nancy]. [Kevin] was so excited to introduce his new girlfriend to his mother, [Nancy].
[{('Wayne', 'son', 'Kevin'): [('Wayne', 'wife', 'Nancy'), ('Nancy', 'son', 'Kevin')]}]
['wife', 'son']