[David] took her son, [Michael], to the movie theater for his birthday. [Joshua] has a sister that picks on him. Her name is [David]. [Michael] cooked a lovely porkchop for his grandmother [Frances].
('Joshua', 'Frances')
[Joshua] has a sister that picks on him. Her name is [David]. [David] took her son, [Michael], to the movie theater for his birthday. [Michael] cooked a lovely porkchop for his grandmother [Frances].
[{('Joshua', 'mother', 'Frances'): [('Joshua', 'sister', 'David'), ('David', 'mother', 'Frances')]}, {('David', 'mother', 'Frances'): [('David', 'son', 'Michael'), ('Michael', 'grandmother', 'Frances')]}]
['sister', 'son', 'grandmother']