[Wayne] invited his daughter [Linda] to dinner. [Linda]'s husband [Kevin] joined her.
('Kevin', 'Wayne')
[Wayne] invited his daughter [Linda] to dinner. [Linda]'s husband [Kevin] joined her.
[{('Kevin', 'father-in-law', 'Wayne'): [('Kevin', 'wife', 'Linda'), ('Linda', 'father', 'Wayne')]}]
['wife', 'father']