[Wesley] and his son, [Charles], helped his father [James] with house chores. [Pamela] is a sister of [Charles].
('James', 'Pamela')
[Wesley] and his son, [Charles], helped his father [James] with house chores. [Pamela] is a sister of [Charles].
[{('James', 'granddaughter', 'Pamela'): [('James', 'son', 'Wesley'), ('Wesley', 'daughter', 'Pamela')]}, {('Wesley', 'daughter', 'Pamela'): [('Wesley', 'son', 'Charles'), ('Charles', 'sister', 'Pamela')]}]
['son', 'son', 'sister']