[Nancy] was unhappy with her son, [Kevin], and his grades. She enlisted a tutor to help him. [Kevin]'s wife, [Linda], was eager to start her new job.
('Nancy', 'Linda')
[Nancy] was unhappy with her son, [Kevin], and his grades. She enlisted a tutor to help him. [Kevin]'s wife, [Linda], was eager to start her new job.
[{('Nancy', 'daughter-in-law', 'Linda'): [('Nancy', 'son', 'Kevin'), ('Kevin', 'wife', 'Linda')]}]
['son', 'wife']