[Irvin]'s Aunt [David] decided to take him on a 7-day cruise! [Lena] and her mother [Frances] were trying to decide what to buy her son [Irvin] for Christmas.
('Frances', 'David')
[Lena] and her mother [Frances] were trying to decide what to buy her son [Irvin] for Christmas. [Irvin]'s Aunt [David] decided to take him on a 7-day cruise!
[{('Frances', 'daughter', 'David'): [('Frances', 'daughter', 'Lena'), ('Lena', 'sister', 'David')]}, {('Lena', 'sister', 'David'): [('Lena', 'son', 'Irvin'), ('Irvin', 'aunt', 'David')]}]
['daughter', 'son', 'aunt']