[Scott] watched his daughter [Alma] playing basketball. [Alma] threw the ball to her brother [Rich] who made the basket. [Matthew] went to the grocery store for his brother [Rich], because he broke his leg.
('Scott', 'Matthew')
[Scott] watched his daughter [Alma] playing basketball. [Alma] threw the ball to her brother [Rich] who made the basket. [Matthew] went to the grocery store for his brother [Rich], because he broke his leg.
[{('Scott', 'son', 'Matthew'): [('Scott', 'son', 'Rich'), ('Rich', 'brother', 'Matthew')]}, {('Scott', 'son', 'Rich'): [('Scott', 'daughter', 'Alma'), ('Alma', 'brother', 'Rich')]}]