[Nicholas] and his father [Clarence] went jogging by the lake. [Nicholas] always looked up to his brother [Dale].
('Clarence', 'Dale')
[Nicholas] and his father [Clarence] went jogging by the lake. [Nicholas] always looked up to his brother [Dale].
[{('Clarence', 'son', 'Dale'): [('Clarence', 'son', 'Nicholas'), ('Nicholas', 'brother', 'Dale')]}]
['son', 'brother']