[Frances]'s son [Wesley] is running for class president. [Wesley]'s sister [Lynn] is helping make signs. [Lynn] went on a vacation with her brother [Hugh].
('Frances', 'Hugh')
[Frances]'s son [Wesley] is running for class president. [Wesley]'s sister [Lynn] is helping make signs. [Lynn] went on a vacation with her brother [Hugh].
[{('Frances', 'son', 'Hugh'): [('Frances', 'daughter', 'Lynn'), ('Lynn', 'brother', 'Hugh')]}, {('Frances', 'daughter', 'Lynn'): [('Frances', 'son', 'Wesley'), ('Wesley', 'sister', 'Lynn')]}]
['son', 'sister', 'brother']