[Dennis] plays piano so good that his grandfather [Clarence] gifted him a new set this winter. [Dennis] was so excited to introduce his new girlfriend to his mother, [Amy].
('Amy', 'Clarence')
[Dennis] was so excited to introduce his new girlfriend to his mother, [Amy]. [Dennis] plays piano so good that his grandfather [Clarence] gifted him a new set this winter.
[{('Amy', 'father', 'Clarence'): [('Amy', 'son', 'Dennis'), ('Dennis', 'grandfather', 'Clarence')]}]
['son', 'grandfather']