[Lena] asked her son [Charles] to help her fix her television. [Pamela] was celebrating her birthday with her mother [Lena]. [Wesley] took his daughter [Pamela] to the bookstore, and bought her some books from her favorite author.
('Wesley', 'Charles')
[Wesley] took his daughter [Pamela] to the bookstore, and bought her some books from her favorite author. [Pamela] was celebrating her birthday with her mother [Lena]. [Lena] asked her son [Charles] to help her fix her television.
[{('Wesley', 'son', 'Charles'): [('Wesley', 'daughter', 'Pamela'), ('Pamela', 'brother', 'Charles')]}, {('Pamela', 'brother', 'Charles'): [('Pamela', 'mother', 'Lena'), ('Lena', 'son', 'Charles')]}]
['daughter', 'mother', 'son']