[Jeff] met his brother [Robert] for drinks after work. [Clarence] was very excited to meet his new grandson [Jeff].
('Clarence', 'Robert')
[Clarence] was very excited to meet his new grandson [Jeff]. [Jeff] met his brother [Robert] for drinks after work.
[{('Clarence', 'grandson', 'Robert'): [('Clarence', 'grandson', 'Jeff'), ('Jeff', 'brother', 'Robert')]}]
['grandson', 'brother']