[Heather] took her younger sister [Rebecca] to the carnival last weekend. [Pedro] was having a private talk with his daughter, [Cheryl], when [Cheryl]'s sister, [Rebecca], butted in. [Pedro]'s wife, [Dorothy], told [Rebecca] to mind her own business.
('Dorothy', 'Heather')
[Pedro] was having a private talk with his daughter, [Cheryl], when [Cheryl]'s sister, [Rebecca], butted in. [Pedro]'s wife, [Dorothy], told [Rebecca] to mind her own business. [Heather] took her younger sister [Rebecca] to the carnival last weekend.
[{('Dorothy', 'daughter', 'Heather'): [('Dorothy', 'husband', 'Pedro'), ('Pedro', 'daughter', 'Heather')]}, {('Pedro', 'daughter', 'Heather'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'sister', 'Heather')]}, {('Cheryl', 'sister', 'Heather'): [('Cheryl', 'sister', 'Rebecca'), ('Rebecca', 'sister', 'Heather')]}]
['husband', 'daughter', 'sister', 'sister']