[Anna] received a very nice letter from her grandfather [James]. [Pete] and his mother, [Cindy], drove to the elementary school. [Cindy]'s daughter, [Anna], had finished her first day, and they wanted to pick her up, and see how her day had been.
('Pete', 'James')
[Pete] and his mother, [Cindy], drove to the elementary school. [Cindy]'s daughter, [Anna], had finished her first day, and they wanted to pick her up, and see how her day had been. [Anna] received a very nice letter from her grandfather [James].
[{('Pete', 'grandfather', 'James'): [('Pete', 'sister', 'Anna'), ('Anna', 'grandfather', 'James')]}, {('Pete', 'sister', 'Anna'): [('Pete', 'mother', 'Cindy'), ('Cindy', 'daughter', 'Anna')]}]
['mother', 'daughter', 'grandfather']