[George] and his sister [Theresa] stood in line at the fair. [George] took his son [Jerry] to school this morning because he missed the bus.
('Theresa', 'Jerry')
[George] and his sister [Theresa] stood in line at the fair. [George] took his son [Jerry] to school this morning because he missed the bus.
[{('Theresa', 'nephew', 'Jerry'): [('Theresa', 'brother', 'George'), ('George', 'son', 'Jerry')]}]
['brother', 'son']