[Clarence] made a cake for his granddaughter [Ann]. [Ann]'s brother [Andrea] was jealous he could n't have any cake.
('Andrea', 'Clarence')
[Clarence] made a cake for his granddaughter [Ann]. [Ann]'s brother [Andrea] was jealous he could n't have any cake.
[{('Andrea', 'grandfather', 'Clarence'): [('Andrea', 'sister', 'Ann'), ('Ann', 'grandfather', 'Clarence')]}]
['sister', 'grandfather']