[Linda] and her husband [Kevin] went to the shopping mall. [Kevin] wanted to buy his mother, [Nancy], a Christmas present.
('Nancy', 'Linda')
[Linda] and her husband [Kevin] went to the shopping mall. [Kevin] wanted to buy his mother, [Nancy], a Christmas present.
[{('Nancy', 'daughter-in-law', 'Linda'): [('Nancy', 'son', 'Kevin'), ('Kevin', 'wife', 'Linda')]}]
['son', 'wife']