[George] asked his daughter, [Andrea], why she was crying. [Andrea] told him her sister, [April], had pulled her hair.
('George', 'April')
[George] asked his daughter, [Andrea], why she was crying. [Andrea] told him her sister, [April], had pulled her hair.
[{('George', 'daughter', 'April'): [('George', 'daughter', 'Andrea'), ('Andrea', 'sister', 'April')]}]
['daughter', 'sister']