[Elsie] does n't like having to babysit her younger brother, [Allan]. [Elsie] and her sister [Angelica] are the only children in their family. [Robert] went to dinner with daughter [Angelica] and his father [Harold].
('Harold', 'Allan')
[Robert] went to dinner with daughter [Angelica] and his father [Harold]. [Elsie] and her sister [Angelica] are the only children in their family. [Elsie] does n't like having to babysit her younger brother, [Allan].
[{('Harold', 'grandson', 'Allan'): [('Harold', 'granddaughter', 'Angelica'), ('Angelica', 'brother', 'Allan')]}, {('Angelica', 'brother', 'Allan'): [('Angelica', 'sister', 'Elsie'), ('Elsie', 'brother', 'Allan')]}, {('Harold', 'granddaughter', 'Angelica'): [('Harold', 'son', 'Robert'), ('Robert', 'daughter', 'Angelica')]}]
['son', 'daughter', 'sister', 'brother']