[Pedro] took his nephew [Wayne] to the park to teach him how to ride a bike. [Pedro] is happy that his brother, [Robert], is becoming successful. [Louis]'s wife [Beverly] has very pretty eyes. [Beverly]'s son, [Wayne], was busy with school activities and forgot to meet his sister.
('Louis', 'Robert')
[Louis]'s wife [Beverly] has very pretty eyes. [Beverly]'s son, [Wayne], was busy with school activities and forgot to meet his sister. [Pedro] took his nephew [Wayne] to the park to teach him how to ride a bike. [Pedro] is happy that his brother, [Robert], is becoming successful.
[{('Louis', 'brother', 'Robert'): [('Louis', 'brother', 'Pedro'), ('Pedro', 'brother', 'Robert')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'son', 'Wayne'), ('Wayne', 'uncle', 'Pedro')]}, {('Louis', 'son', 'Wayne'): [('Louis', 'wife', 'Beverly'), ('Beverly', 'son', 'Wayne')]}]
['wife', 'son', 'uncle', 'brother']