[Ashley] played golf with her son [George]. [George]'s sister [Theresa] watched with delight.
('Theresa', 'Ashley')
[Ashley] played golf with her son [George]. [George]'s sister [Theresa] watched with delight.
[{('Theresa', 'mother', 'Ashley'): [('Theresa', 'brother', 'George'), ('George', 'mother', 'Ashley')]}]
['brother', 'mother']