[Frances] had to pick up her grandson [Theodore] and his sister, [Martha], from school today. [James] was waiting patiently for his wife, [Frances].
('James', 'Martha')
[James] was waiting patiently for his wife, [Frances]. [Frances] had to pick up her grandson [Theodore] and his sister, [Martha], from school today.
[{('James', 'granddaughter', 'Martha'): [('James', 'wife', 'Frances'), ('Frances', 'granddaughter', 'Martha')]}, {('Frances', 'granddaughter', 'Martha'): [('Frances', 'grandson', 'Theodore'), ('Theodore', 'sister', 'Martha')]}]
['wife', 'grandson', 'sister']