[Clarence] took his granddaughter [Andrea] to the zoo for her birthday and afterwards they went to the park. [April] was sewing a sweater for her sister [Andrea].
('Clarence', 'April')
[Clarence] took his granddaughter [Andrea] to the zoo for her birthday and afterwards they went to the park. [April] was sewing a sweater for her sister [Andrea].
[{('Clarence', 'granddaughter', 'April'): [('Clarence', 'granddaughter', 'Andrea'), ('Andrea', 'sister', 'April')]}]
['granddaughter', 'sister']