[Chris] called his sister [Martha] to find out if she wanted to go to the movies with him and his other sister [Pamela]. She was excited to join the two of them and they agreed to meet at 5pm. [Pamela] was thrilled to spend the day with her grandfather, [James].
('James', 'Martha')
[Pamela] was thrilled to spend the day with her grandfather, [James]. [Chris] called his sister [Martha] to find out if she wanted to go to the movies with him and his other sister [Pamela]. She was excited to join the two of them and they agreed to meet at 5pm.
[{('James', 'granddaughter', 'Martha'): [('James', 'grandson', 'Chris'), ('Chris', 'sister', 'Martha')]}, {('James', 'grandson', 'Chris'): [('James', 'granddaughter', 'Pamela'), ('Pamela', 'brother', 'Chris')]}]
['granddaughter', 'brother', 'sister']