[Laura] asked her mother, [Martha], to help her with her math homework. [Martha] said she would, as soon as she put her son [Brent] to bed.
('Laura', 'Brent')
[Laura] asked her mother, [Martha], to help her with her math homework. [Martha] said she would, as soon as she put her son [Brent] to bed.
[{('Laura', 'brother', 'Brent'): [('Laura', 'mother', 'Martha'), ('Martha', 'son', 'Brent')]}]