[Charles] did n't get along very well with his sister [Pamela] for some reason. [Martha] 'father, [Wesley], recently went back to school. [Pamela] was talking about food with her sister [Martha].
('Charles', 'Wesley')
[Charles] did n't get along very well with his sister [Pamela] for some reason. [Pamela] was talking about food with her sister [Martha]. [Martha] 'father, [Wesley], recently went back to school.
[{('Charles', 'father', 'Wesley'): [('Charles', 'sister', 'Martha'), ('Martha', 'father', 'Wesley')]}, {('Charles', 'sister', 'Martha'): [('Charles', 'sister', 'Pamela'), ('Pamela', 'sister', 'Martha')]}]
['sister', 'sister', 'father']