[Ashley] took her son [Wayne] to the football game. [Wayne] often goes out for lunch with his sister, [Theresa].
('Ashley', 'Theresa')
[Ashley] took her son [Wayne] to the football game. [Wayne] often goes out for lunch with his sister, [Theresa].
[{('Ashley', 'daughter', 'Theresa'): [('Ashley', 'son', 'Wayne'), ('Wayne', 'sister', 'Theresa')]}]
['son', 'sister']