[George] went to pick up his daughter [April] from school on the last day before summer vacation. [Amy] is coming to New York to visit her niece, [April].
('George', 'Amy')
[George] went to pick up his daughter [April] from school on the last day before summer vacation. [Amy] is coming to New York to visit her niece, [April].
[{('George', 'sister', 'Amy'): [('George', 'daughter', 'April'), ('April', 'aunt', 'Amy')]}]
['daughter', 'aunt']