[Timothy] loves his grandfather [Clarence], very much. [Clarence] loves him, too. [Timothy] likes to watch boxing with his brother. His name is [Jerry].
('Jerry', 'Clarence')
[Timothy] likes to watch boxing with his brother. His name is [Jerry]. [Timothy] loves his grandfather [Clarence], very much. [Clarence] loves him, too.
[{('Jerry', 'grandfather', 'Clarence'): [('Jerry', 'brother', 'Timothy'), ('Timothy', 'grandfather', 'Clarence')]}]
['brother', 'grandfather']