[Ashley] sent her son [George] some money for the holidays. [George] used the money to buy his son [John] a new toy car.
('Ashley', 'John')
[Ashley] sent her son [George] some money for the holidays. [George] used the money to buy his son [John] a new toy car.
[{('Ashley', 'grandson', 'John'): [('Ashley', 'son', 'George'), ('George', 'son', 'John')]}]
['son', 'son']