[Dorothy] was eager to see her niece, [Lizzie]. They had n't seen each other in ages [Louis] and his sister [Dorothy] stood in line at the fair. [Robert] went to the park with his father, [Harold]. [Robert] is a man with a daughter named [Lizzie].
('Harold', 'Louis')
[Robert] went to the park with his father, [Harold]. [Robert] is a man with a daughter named [Lizzie]. [Dorothy] was eager to see her niece, [Lizzie]. They had n't seen each other in ages [Louis] and his sister [Dorothy] stood in line at the fair.
[{('Harold', 'son', 'Louis'): [('Harold', 'daughter', 'Dorothy'), ('Dorothy', 'brother', 'Louis')]}, {('Harold', 'daughter', 'Dorothy'): [('Harold', 'son', 'Robert'), ('Robert', 'sister', 'Dorothy')]}, {('Robert', 'sister', 'Dorothy'): [('Robert', 'daughter', 'Lizzie'), ('Lizzie', 'aunt', 'Dorothy')]}]
['son', 'daughter', 'aunt', 'brother']