[Clarence] always had fun with his granddaughter [Louise]. They liked going to the park the most. [Heidi] called [Louise], her sister, to see if she wanted to go out to eat.
('Clarence', 'Heidi')
[Clarence] always had fun with his granddaughter [Louise]. They liked going to the park the most. [Heidi] called [Louise], her sister, to see if she wanted to go out to eat.
[{('Clarence', 'granddaughter', 'Heidi'): [('Clarence', 'granddaughter', 'Louise'), ('Louise', 'sister', 'Heidi')]}]
['granddaughter', 'sister']