[James] and his wife, [Frances] always enjoyed having their grandson, [Pete], visit them. They could n't believe how much he and his sister, [Anna], had grown up.
('Frances', 'Anna')
[James] and his wife, [Frances] always enjoyed having their grandson, [Pete], visit them. They could n't believe how much he and his sister, [Anna], had grown up.
[{('Frances', 'granddaughter', 'Anna'): [('Frances', 'grandson', 'Pete'), ('Pete', 'sister', 'Anna')]}, {('Frances', 'grandson', 'Pete'): [('Frances', 'husband', 'James'), ('James', 'grandson', 'Pete')]}]
['husband', 'grandson', 'sister']