[Wesley] played catch with his son [Theodore]. [Wesley]'s other son [Irvin] does n't play baseball. [Irvin] and his brother [Chris] had a fight. They did n't speak to each other for a whole week afterwards.
('Chris', 'Theodore')
[Irvin] and his brother [Chris] had a fight. They did n't speak to each other for a whole week afterwards. [Wesley] played catch with his son [Theodore]. [Wesley]'s other son [Irvin] does n't play baseball.
[{('Chris', 'brother', 'Theodore'): [('Chris', 'brother', 'Irvin'), ('Irvin', 'brother', 'Theodore')]}, {('Irvin', 'brother', 'Theodore'): [('Irvin', 'father', 'Wesley'), ('Wesley', 'son', 'Theodore')]}]
['brother', 'father', 'son']