[James]'s daughter [Lena] had to stay home from work today. She stayed home to watch her son [Chris] who was sick. [Irvin] and his brother [Chris] went to the carnival. [Chris] wanted to ride the Ferris wheel, but [Irvin] insisted they go on the bumper cars first.
('James', 'Irvin')
[James]'s daughter [Lena] had to stay home from work today. She stayed home to watch her son [Chris] who was sick. [Irvin] and his brother [Chris] went to the carnival. [Chris] wanted to ride the Ferris wheel, but [Irvin] insisted they go on the bumper cars first.
[{('James', 'grandson', 'Irvin'): [('James', 'daughter', 'Lena'), ('Lena', 'son', 'Irvin')]}, {('Lena', 'son', 'Irvin'): [('Lena', 'son', 'Chris'), ('Chris', 'brother', 'Irvin')]}]
['daughter', 'son', 'brother']