[Jacob]'s sister, [Lorraine], participated in the dance contest. [Lorraine] took her grandfather [Clarence] out to eat last Sunday after church. They had ice cream for dessert.
('Jacob', 'Clarence')
[Jacob]'s sister, [Lorraine], participated in the dance contest. [Lorraine] took her grandfather [Clarence] out to eat last Sunday after church. They had ice cream for dessert.
[{('Jacob', 'grandfather', 'Clarence'): [('Jacob', 'sister', 'Lorraine'), ('Lorraine', 'grandfather', 'Clarence')]}]
['sister', 'grandfather']