[James] and his son [Pedro] are playing a father-son game of basketball. [Roberto] is waiting to go to dinner with his dad [Pedro]. [Pedro] took his son [Roberto] out for ice cream. [Pedro]'s son [Jeffrey], was still in school.
('Jeffrey', 'James')
[Pedro] took his son [Roberto] out for ice cream. [Pedro]'s son [Jeffrey], was still in school. [James] and his son [Pedro] are playing a father-son game of basketball. [Roberto] is waiting to go to dinner with his dad [Pedro].
[{('Jeffrey', 'brother', 'James'): [('Jeffrey', 'brother', 'Roberto'), ('Roberto', 'brother', 'James')]}, {('Jeffrey', 'brother', 'Roberto'): [('Jeffrey', 'father', 'Pedro'), ('Pedro', 'son', 'Roberto')]}, {('Roberto', 'brother', 'James'): [('Roberto', 'father', 'Pedro'), ('Pedro', 'son', 'James')]}]
['father', 'son', 'father', 'son']