[Pedro] and his brother [Robert] were painting the house. [Angelica] asked her father, [Robert], if they needed any help. [Angelica]'s sister, [Elsie], did n't ask, because she was a selfish little girl. [Pedro] made dinner reservations for his sister [Beverly].
('Elsie', 'Beverly')
[Pedro] and his brother [Robert] were painting the house. [Angelica] asked her father, [Robert], if they needed any help. [Angelica]'s sister, [Elsie], did n't ask, because she was a selfish little girl. [Pedro] made dinner reservations for his sister [Beverly].
[{('Elsie', 'aunt', 'Beverly'): [('Elsie', 'father', 'Robert'), ('Robert', 'sister', 'Beverly')]}, {('Elsie', 'father', 'Robert'): [('Elsie', 'sister', 'Angelica'), ('Angelica', 'father', 'Robert')]}, {('Robert', 'sister', 'Beverly'): [('Robert', 'brother', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}]
['sister', 'father', 'brother', 'sister']