[Pedro] and his brother [Antonio] went to the park. They threw a ball around and played with their dog. [Pedro] took his daughter [Heather] to dinner, [Cheryl], [Heather]'s sister stayed home. [Shantel] took her son, [Antonio], to the movie theater for his birthday.
('Shantel', 'Cheryl')
[Shantel] took her son, [Antonio], to the movie theater for his birthday. [Pedro] and his brother [Antonio] went to the park. They threw a ball around and played with their dog. [Pedro] took his daughter [Heather] to dinner, [Cheryl], [Heather]'s sister stayed home.
[{('Shantel', 'granddaughter', 'Cheryl'): [('Shantel', 'granddaughter', 'Heather'), ('Heather', 'sister', 'Cheryl')]}, {('Shantel', 'granddaughter', 'Heather'): [('Shantel', 'son', 'Pedro'), ('Pedro', 'daughter', 'Heather')]}, {('Shantel', 'son', 'Pedro'): [('Shantel', 'son', 'Antonio'), ('Antonio', 'brother', 'Pedro')]}]
['son', 'brother', 'daughter', 'sister']