[Constance] took her daughter [Geraldine] to visit [Geraldine]'s grandfather, [Roy].
('Constance', 'Roy')
[Constance] took her daughter [Geraldine] to visit [Geraldine]'s grandfather, [Roy].
[{('Constance', 'father', 'Roy'): [('Constance', 'daughter', 'Geraldine'), ('Geraldine', 'grandfather', 'Roy')]}]