[Harold] threw the ball to his son [Louis]. [Harold] did n't like playing ball with his daughter [Dorothy]. [Marie] is teaching her niece, [Heather] how to bake a homemade apple pie. [Dorothy] told her daughter [Heather] to wash up. Dinner was ready.
('Louis', 'Marie')
[Harold] threw the ball to his son [Louis]. [Harold] did n't like playing ball with his daughter [Dorothy]. [Dorothy] told her daughter [Heather] to wash up. Dinner was ready. [Marie] is teaching her niece, [Heather] how to bake a homemade apple pie.
[{('Louis', 'sister', 'Marie'): [('Louis', 'sister', 'Dorothy'), ('Dorothy', 'sister', 'Marie')]}, {('Louis', 'sister', 'Dorothy'): [('Louis', 'father', 'Harold'), ('Harold', 'daughter', 'Dorothy')]}, {('Dorothy', 'sister', 'Marie'): [('Dorothy', 'daughter', 'Heather'), ('Heather', 'aunt', 'Marie')]}]
['father', 'daughter', 'daughter', 'aunt']