[Louis] took his son [Paul] to soccer practice. [Robert] and his brother [Antonio] played at jacks. [Pedro] and his brother [Robert] were rarely seen apart. [Paul]'s uncle, [Pedro], is finally getting help for his alcoholism.
('Louis', 'Antonio')
[Louis] took his son [Paul] to soccer practice. [Paul]'s uncle, [Pedro], is finally getting help for his alcoholism. [Pedro] and his brother [Robert] were rarely seen apart. [Robert] and his brother [Antonio] played at jacks.
[{('Louis', 'brother', 'Antonio'): [('Louis', 'brother', 'Pedro'), ('Pedro', 'brother', 'Antonio')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'son', 'Paul'), ('Paul', 'uncle', 'Pedro')]}, {('Pedro', 'brother', 'Antonio'): [('Pedro', 'brother', 'Robert'), ('Robert', 'brother', 'Antonio')]}]
['son', 'uncle', 'brother', 'brother']