[George]'s father, [Clarence], decided to buy a boat. However, [George]'s daughter, [Ann], felt it was a bad investment of retirement funds.
('Clarence', 'Ann')
[George]'s father, [Clarence], decided to buy a boat. However, [George]'s daughter, [Ann], felt it was a bad investment of retirement funds.
[{('Clarence', 'granddaughter', 'Ann'): [('Clarence', 'son', 'George'), ('George', 'daughter', 'Ann')]}]
['son', 'daughter']