[Louise] made breakfast for her sister [Lorraine]. [Lorraine]'s brother [Kevin] sat down at the table with a bowl of cereal.
('Kevin', 'Louise')
[Louise] made breakfast for her sister [Lorraine]. [Lorraine]'s brother [Kevin] sat down at the table with a bowl of cereal.
[{('Kevin', 'sister', 'Louise'): [('Kevin', 'sister', 'Lorraine'), ('Lorraine', 'sister', 'Louise')]}]
['sister', 'sister']