[Jennifer] is [Michael]'s first wife [Nicholas]'s son is [Michael]. [Michael] and his father always go fishing together on Sundays and have a great time together.
('Nicholas', 'Jennifer')
[Nicholas]'s son is [Michael]. [Michael] and his father always go fishing together on Sundays and have a great time together. [Jennifer] is [Michael]'s first wife
[{('Nicholas', 'daughter-in-law', 'Jennifer'): [('Nicholas', 'son', 'Michael'), ('Michael', 'wife', 'Jennifer')]}]
['son', 'wife']