[James] took his wife [Frances] and grandson [Pete] to a bakery. [Pete]'s sister [Carrie] does n't like sweets and did n't go.
('Frances', 'Carrie')
[James] took his wife [Frances] and grandson [Pete] to a bakery. [Pete]'s sister [Carrie] does n't like sweets and did n't go.
[{('Frances', 'granddaughter', 'Carrie'): [('Frances', 'grandson', 'Pete'), ('Pete', 'sister', 'Carrie')]}, {('Frances', 'grandson', 'Pete'): [('Frances', 'husband', 'James'), ('James', 'grandson', 'Pete')]}]
['husband', 'grandson', 'sister']