[Fernando] and his brother, [Timmy], went to visit [Fernando]'s grandfather, [Roy].
('Timmy', 'Roy')
[Fernando] and his brother, [Timmy], went to visit [Fernando]'s grandfather, [Roy].
[{('Timmy', 'grandfather', 'Roy'): [('Timmy', 'brother', 'Fernando'), ('Fernando', 'grandfather', 'Roy')]}]