[Theodore] is one of [Tina]'s brothers. They have lots of fun together. [Theodore] went to the baseball game with his brother [Irvin]. [Mildred] was talking about food with her sister [Tina].
('Mildred', 'Irvin')
[Mildred] was talking about food with her sister [Tina]. [Theodore] is one of [Tina]'s brothers. They have lots of fun together. [Theodore] went to the baseball game with his brother [Irvin].
[{('Mildred', 'brother', 'Irvin'): [('Mildred', 'sister', 'Tina'), ('Tina', 'brother', 'Irvin')]}, {('Tina', 'brother', 'Irvin'): [('Tina', 'brother', 'Theodore'), ('Theodore', 'brother', 'Irvin')]}]
['sister', 'brother', 'brother']