[Nicholas] and his daughter [Mary] helped to make Thanksgiving dinner together. [Nicholas] loves to play baseball with his dad, [Clarence].
('Clarence', 'Mary')
[Nicholas] loves to play baseball with his dad, [Clarence]. [Nicholas] and his daughter [Mary] helped to make Thanksgiving dinner together.
[{('Clarence', 'granddaughter', 'Mary'): [('Clarence', 'son', 'Nicholas'), ('Nicholas', 'daughter', 'Mary')]}]
['son', 'daughter']