[Ann] took her grandfather [Clarence] some dinner yesterday and her sister [Andrea] went with her.
('Andrea', 'Clarence')
[Ann] took her grandfather [Clarence] some dinner yesterday and her sister [Andrea] went with her.
[{('Andrea', 'grandfather', 'Clarence'): [('Andrea', 'sister', 'Ann'), ('Ann', 'grandfather', 'Clarence')]}]
['sister', 'grandfather']