[Dale]'s dad [Clarence] is the CEO of the company. [Dale] taught his daughter, [Rosetta], how to ride a bike.
('Rosetta', 'Clarence')
[Dale] taught his daughter, [Rosetta], how to ride a bike. [Dale]'s dad [Clarence] is the CEO of the company.
[{('Rosetta', 'grandfather', 'Clarence'): [('Rosetta', 'father', 'Dale'), ('Dale', 'father', 'Clarence')]}]
['father', 'father']