[Charles] liked playing with his brother [Chris] more than anyone else. This made [Pamela] jealous of her brother [Chris]. [Charles] is going to be spending the weekend with his grandfather [James].
('Pamela', 'James')
[Charles] liked playing with his brother [Chris] more than anyone else. This made [Pamela] jealous of her brother [Chris]. [Charles] is going to be spending the weekend with his grandfather [James].
[{('Pamela', 'grandfather', 'James'): [('Pamela', 'brother', 'Charles'), ('Charles', 'grandfather', 'James')]}, {('Pamela', 'brother', 'Charles'): [('Pamela', 'brother', 'Chris'), ('Chris', 'brother', 'Charles')]}]
['brother', 'brother', 'grandfather']