[Nicholas] took his daughter [Jennifer] to dinner, [Natalia], [Jennifer]'s sister stayed home.
('Nicholas', 'Natalia')
[Nicholas] took his daughter [Jennifer] to dinner, [Natalia], [Jennifer]'s sister stayed home.
[{('Nicholas', 'daughter', 'Natalia'): [('Nicholas', 'daughter', 'Jennifer'), ('Jennifer', 'sister', 'Natalia')]}]
['daughter', 'sister']