[Wayne] took his sister [Theresa] to the movies with him to see the new Star Wars film. [Clarence] took his daughter [Theresa] to ballet class.
('Wayne', 'Clarence')
[Wayne] took his sister [Theresa] to the movies with him to see the new Star Wars film. [Clarence] took his daughter [Theresa] to ballet class.
[{('Wayne', 'father', 'Clarence'): [('Wayne', 'sister', 'Theresa'), ('Theresa', 'father', 'Clarence')]}]
['sister', 'father']