[Adan] went to dinner with his grandfather, [Roy]. [Adan] was upset that his brother, [Franklin], could n't be at the dinner.
('Franklin', 'Roy')
[Adan] went to dinner with his grandfather, [Roy]. [Adan] was upset that his brother, [Franklin], could n't be at the dinner.
[{('Franklin', 'grandfather', 'Roy'): [('Franklin', 'brother', 'Adan'), ('Adan', 'grandfather', 'Roy')]}]