[Nancy] was eager to see her niece, [April]. They had n't seen each other in ages [George] bought his daughter, [April], flowers.
('George', 'Nancy')
[George] bought his daughter, [April], flowers. [Nancy] was eager to see her niece, [April]. They had n't seen each other in ages
[{('George', 'sister', 'Nancy'): [('George', 'daughter', 'April'), ('April', 'aunt', 'Nancy')]}]
['daughter', 'aunt']