[Amy] took her daughter [Mary] to the store to find her some new boots for the cold winter weather. [Amy] was yelling at her father [Clarence].
('Mary', 'Clarence')
[Amy] took her daughter [Mary] to the store to find her some new boots for the cold winter weather. [Amy] was yelling at her father [Clarence].
[{('Mary', 'grandfather', 'Clarence'): [('Mary', 'mother', 'Amy'), ('Amy', 'father', 'Clarence')]}]
['mother', 'father']