[James] and his brother [Roberto] like to go to the movies every weekend. [Rebecca] has started to accompany her brother [Roberto] to the movies whenever he goes. [James] wanted to buy his mother, [Dorothy], a birthday present. But he did n't know what to get her. [Rebecca] and her brother [Jeffrey] went to the basketball game and had a great time.
('Jeffrey', 'Dorothy')
[Rebecca] and her brother [Jeffrey] went to the basketball game and had a great time. [James] and his brother [Roberto] like to go to the movies every weekend. [Rebecca] has started to accompany her brother [Roberto] to the movies whenever he goes. [James] wanted to buy his mother, [Dorothy], a birthday present. But he did n't know what to get her.
[{('Jeffrey', 'mother', 'Dorothy'): [('Jeffrey', 'brother', 'Roberto'), ('Roberto', 'mother', 'Dorothy')]}, {('Jeffrey', 'brother', 'Roberto'): [('Jeffrey', 'sister', 'Rebecca'), ('Rebecca', 'brother', 'Roberto')]}, {('Roberto', 'mother', 'Dorothy'): [('Roberto', 'brother', 'James'), ('James', 'mother', 'Dorothy')]}]
['sister', 'brother', 'brother', 'mother']