[Lizzie] asked her mother, [Marie], to help her with her math homework. [Marie] said she would, as soon as she put her son [Ronald] to bed. [Ronald] does not like being around his uncle, [Louis]'s, company. [Louis] always enjoyed playing with his sister, [Dorothy], when they were growing up.
('Lizzie', 'Dorothy')
[Lizzie] asked her mother, [Marie], to help her with her math homework. [Marie] said she would, as soon as she put her son [Ronald] to bed. [Ronald] does not like being around his uncle, [Louis]'s, company. [Louis] always enjoyed playing with his sister, [Dorothy], when they were growing up.
[{('Lizzie', 'aunt', 'Dorothy'): [('Lizzie', 'mother', 'Marie'), ('Marie', 'sister', 'Dorothy')]}, {('Marie', 'sister', 'Dorothy'): [('Marie', 'brother', 'Louis'), ('Louis', 'sister', 'Dorothy')]}, {('Marie', 'brother', 'Louis'): [('Marie', 'son', 'Ronald'), ('Ronald', 'uncle', 'Louis')]}]
['mother', 'son', 'uncle', 'sister']