[Roberto] and his brother [Jeffrey] fight a lot. Despite this, they still love each other very much. [Pedro] is proud of his son. His name is [Roberto]. [Rebecca] and her brother [Jeffrey] watched TV together. [James] was invited to watch too, because [Rebecca] is his sister.
('James', 'Pedro')
[Rebecca] and her brother [Jeffrey] watched TV together. [James] was invited to watch too, because [Rebecca] is his sister. [Roberto] and his brother [Jeffrey] fight a lot. Despite this, they still love each other very much. [Pedro] is proud of his son. His name is [Roberto].
[{('James', 'father', 'Pedro'): [('James', 'brother', 'Roberto'), ('Roberto', 'father', 'Pedro')]}, {('James', 'brother', 'Roberto'): [('James', 'sister', 'Rebecca'), ('Rebecca', 'brother', 'Roberto')]}, {('Rebecca', 'brother', 'Roberto'): [('Rebecca', 'brother', 'Jeffrey'), ('Jeffrey', 'brother', 'Roberto')]}]
['sister', 'brother', 'brother', 'father']