[Travis] loves his mother [Theresa] very much. [Nancy] was sewing a sweater for her sister [Theresa].
('Travis', 'Nancy')
[Travis] loves his mother [Theresa] very much. [Nancy] was sewing a sweater for her sister [Theresa].
[{('Travis', 'aunt', 'Nancy'): [('Travis', 'mother', 'Theresa'), ('Theresa', 'sister', 'Nancy')]}]
['mother', 'sister']