[Ashley] likes taking her son [George] to school. [Jerry]'s father [George] is going to coach the team this year.
('Ashley', 'Jerry')
[Ashley] likes taking her son [George] to school. [Jerry]'s father [George] is going to coach the team this year.
[{('Ashley', 'grandson', 'Jerry'): [('Ashley', 'son', 'George'), ('George', 'son', 'Jerry')]}]
['son', 'son']