[Irvin] and his sister [Tina] went out for coffee. [Tina] asked her brother [Chris] if he wanted them to bring him anything back, but he said no. [Wesley] is taking his son [Chris] on a camping trip for the weekend.
('Irvin', 'Wesley')
[Irvin] and his sister [Tina] went out for coffee. [Tina] asked her brother [Chris] if he wanted them to bring him anything back, but he said no. [Wesley] is taking his son [Chris] on a camping trip for the weekend.
[{('Irvin', 'father', 'Wesley'): [('Irvin', 'sister', 'Tina'), ('Tina', 'father', 'Wesley')]}, {('Tina', 'father', 'Wesley'): [('Tina', 'brother', 'Chris'), ('Chris', 'father', 'Wesley')]}]
['sister', 'brother', 'father']