[Antonio] went to the store with his brother, [Louis]. [Antonio] took his niece [Cheryl] to the park to walk her dog. [Pedro] loves his daughter [Cheryl]. [Louis] is taking his son [Samuel] out for coffee.
('Pedro', 'Samuel')
[Pedro] loves his daughter [Cheryl]. [Antonio] took his niece [Cheryl] to the park to walk her dog. [Antonio] went to the store with his brother, [Louis]. [Louis] is taking his son [Samuel] out for coffee.
[{('Pedro', 'nephew', 'Samuel'): [('Pedro', 'brother', 'Louis'), ('Louis', 'son', 'Samuel')]}, {('Pedro', 'brother', 'Louis'): [('Pedro', 'brother', 'Antonio'), ('Antonio', 'brother', 'Louis')]}, {('Pedro', 'brother', 'Antonio'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'uncle', 'Antonio')]}]
['daughter', 'uncle', 'brother', 'son']