[Joshua] went hunting with his son, [Joseph]. [Hugh] did n't get along very well with his sister [Cindy] for some reason. [Joshua] and his brother [Hugh] just talked on the phone for the first time in years.
('Joseph', 'Cindy')
[Joshua] went hunting with his son, [Joseph]. [Joshua] and his brother [Hugh] just talked on the phone for the first time in years. [Hugh] did n't get along very well with his sister [Cindy] for some reason.
[{('Joseph', 'aunt', 'Cindy'): [('Joseph', 'father', 'Joshua'), ('Joshua', 'sister', 'Cindy')]}, {('Joshua', 'sister', 'Cindy'): [('Joshua', 'brother', 'Hugh'), ('Hugh', 'sister', 'Cindy')]}]
['father', 'brother', 'sister']