[Lynn] is best friends with her sister [Cindy]. [Cindy] does not get along with her brother [Wesley]. [Chris] asked his father, [Wesley], to help him with his math homework. [Wesley] could n't, because he was lousy at math himself.
('Chris', 'Cindy')
[Chris] asked his father, [Wesley], to help him with his math homework. [Wesley] could n't, because he was lousy at math himself. [Lynn] is best friends with her sister [Cindy]. [Cindy] does not get along with her brother [Wesley].
[{('Chris', 'aunt', 'Cindy'): [('Chris', 'father', 'Wesley'), ('Wesley', 'sister', 'Cindy')]}, {('Wesley', 'sister', 'Cindy'): [('Wesley', 'sister', 'Lynn'), ('Lynn', 'sister', 'Cindy')]}]
['father', 'sister', 'sister']