[Jerry] loved staying weekends at his grandfather [Clarence]'s house. He would listen to [Clarence]'s stories, play checkers, and drink hot chocolate. When he goes home on Sundays he works on homework with his brother [Douglas].
('Clarence', 'Douglas')
[Jerry] loved staying weekends at his grandfather [Clarence]'s house. He would listen to [Clarence]'s stories, play checkers, and drink hot chocolate. When he goes home on Sundays he works on homework with his brother [Douglas].
[{('Clarence', 'grandson', 'Douglas'): [('Clarence', 'grandson', 'Jerry'), ('Jerry', 'brother', 'Douglas')]}]
['grandson', 'brother']