[Linda] and her husband [Kevin] went to visit her mom [Wayne] for the holidays.
('Kevin', 'Wayne')
[Linda] and her husband [Kevin] went to visit her mom [Wayne] for the holidays.
[{('Kevin', 'father-in-law', 'Wayne'): [('Kevin', 'wife', 'Linda'), ('Linda', 'father', 'Wayne')]}]
['wife', 'father']