[Lorraine] wanted to visit her grandfather [Clarence], but she had to help her sister [Linda] with chores.
('Linda', 'Clarence')
[Lorraine] wanted to visit her grandfather [Clarence], but she had to help her sister [Linda] with chores.
[{('Linda', 'grandfather', 'Clarence'): [('Linda', 'sister', 'Lorraine'), ('Lorraine', 'grandfather', 'Clarence')]}]
['sister', 'grandfather']