[June] invited her grandfather [Clarence] to the movies last weekend. [Clarence] and [June] had a great time together. [Charlotte] was talking about food with her sister [June].
('Charlotte', 'Clarence')
[Charlotte] was talking about food with her sister [June]. [June] invited her grandfather [Clarence] to the movies last weekend. [Clarence] and [June] had a great time together.
[{('Charlotte', 'grandfather', 'Clarence'): [('Charlotte', 'sister', 'June'), ('June', 'grandfather', 'Clarence')]}]
['sister', 'grandfather']