[Frances] sat anxiously in the airport terminal, waiting to see her son [Wesley] walk through the gate. [Lynn] and her son [Don] went to the zoo with [Lynn]'s brother [Wesley].
('Frances', 'Don')
[Frances] sat anxiously in the airport terminal, waiting to see her son [Wesley] walk through the gate. [Lynn] and her son [Don] went to the zoo with [Lynn]'s brother [Wesley].
[{('Frances', 'grandson', 'Don'): [('Frances', 'daughter', 'Lynn'), ('Lynn', 'son', 'Don')]}, {('Frances', 'daughter', 'Lynn'): [('Frances', 'son', 'Wesley'), ('Wesley', 'sister', 'Lynn')]}]
['son', 'sister', 'son']