[Harold] took his granddaughter [Cheryl] to the circus. Her sister, [Rebecca], was jealous. [Dorothy] liked to take her son [Jeffrey] and his sister [Rebecca] out to the park whenever she had the time.
('Dorothy', 'Harold')
[Dorothy] liked to take her son [Jeffrey] and his sister [Rebecca] out to the park whenever she had the time. [Harold] took his granddaughter [Cheryl] to the circus. Her sister, [Rebecca], was jealous.
[{('Dorothy', 'father', 'Harold'): [('Dorothy', 'daughter', 'Rebecca'), ('Rebecca', 'grandfather', 'Harold')]}, {('Dorothy', 'daughter', 'Rebecca'): [('Dorothy', 'son', 'Jeffrey'), ('Jeffrey', 'sister', 'Rebecca')]}, {('Rebecca', 'grandfather', 'Harold'): [('Rebecca', 'sister', 'Cheryl'), ('Cheryl', 'grandfather', 'Harold')]}]
['son', 'sister', 'sister', 'grandfather']