[Marie] took her son [Ronald] shopping for new school clothes. They had a good time. [Lizzie] and [Mario] had a picnic at the park. They had sandwiches and salad. [Marie] taught her son [Ronald] how to mow the lawn once he was old enough. [Lizzie] asked [Marie], her mother, to teach her how to mow the lawn too.
('Mario', 'Marie')
[Lizzie] and [Mario] had a picnic at the park. They had sandwiches and salad. [Marie] taught her son [Ronald] how to mow the lawn once he was old enough. [Lizzie] asked [Marie], her mother, to teach her how to mow the lawn too. [Marie] took her son [Ronald] shopping for new school clothes. They had a good time.
[{('Mario', 'mother', 'Marie'): [('Mario', 'brother', 'Ronald'), ('Ronald', 'mother', 'Marie')]}, {('Mario', 'brother', 'Ronald'): [('Mario', 'sister', 'Lizzie'), ('Lizzie', 'brother', 'Ronald')]}, {('Lizzie', 'brother', 'Ronald'): [('Lizzie', 'mother', 'Marie'), ('Marie', 'son', 'Ronald')]}]
['sister', 'mother', 'son', 'mother']