[Nicholas] liked to play catch with his daughter [Natalia]. [Glen] took his wife [Natalia] on a cruise for their anniversary.
('Glen', 'Nicholas')
[Glen] took his wife [Natalia] on a cruise for their anniversary. [Nicholas] liked to play catch with his daughter [Natalia].
[{('Glen', 'father-in-law', 'Nicholas'): [('Glen', 'wife', 'Natalia'), ('Natalia', 'father', 'Nicholas')]}]
['wife', 'father']