[Elsie] went to visit her aunt, [Tracy], who's birthday was yesterday. [Harold] missed his daughter [Beverly]. [Beverly] was on a vacation with her sister, [Tracy]. [Robert] and his daughter [Elsie] went to Disney World together.
('Robert', 'Harold')
[Robert] and his daughter [Elsie] went to Disney World together. [Elsie] went to visit her aunt, [Tracy], who's birthday was yesterday. [Harold] missed his daughter [Beverly]. [Beverly] was on a vacation with her sister, [Tracy].
[{('Robert', 'father', 'Harold'): [('Robert', 'sister', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Robert', 'sister', 'Beverly'): [('Robert', 'sister', 'Tracy'), ('Tracy', 'sister', 'Beverly')]}, {('Robert', 'sister', 'Tracy'): [('Robert', 'daughter', 'Elsie'), ('Elsie', 'aunt', 'Tracy')]}]
['daughter', 'aunt', 'sister', 'father']