[Frances] and her grandson, [Theodore], went to a museum. [Frances] loved it, but [Theodore] was bored. [Theodore] and his mother, [Lena], drove to the elementary school. [Lena]'s daughter, [Martha], had finished her first day, and they wanted to pick her up, and see how her day had been.
('Frances', 'Martha')
[Frances] and her grandson, [Theodore], went to a museum. [Frances] loved it, but [Theodore] was bored. [Theodore] and his mother, [Lena], drove to the elementary school. [Lena]'s daughter, [Martha], had finished her first day, and they wanted to pick her up, and see how her day had been.
[{('Frances', 'granddaughter', 'Martha'): [('Frances', 'grandson', 'Theodore'), ('Theodore', 'sister', 'Martha')]}, {('Theodore', 'sister', 'Martha'): [('Theodore', 'mother', 'Lena'), ('Lena', 'daughter', 'Martha')]}]
['grandson', 'mother', 'daughter']