[Theresa] taught her son [Nicolas] how to mow the lawn once he was old enough. [June] asked [Theresa], her mother, to teach her how to mow the lawn too.
('June', 'Nicolas')
[Theresa] taught her son [Nicolas] how to mow the lawn once he was old enough. [June] asked [Theresa], her mother, to teach her how to mow the lawn too.
[{('June', 'brother', 'Nicolas'): [('June', 'mother', 'Theresa'), ('Theresa', 'son', 'Nicolas')]}]
['mother', 'son']