[Clarence] asked his mother [Lynn] to read to him. [Lynn] was too busy. [Thomas] was glad his aunt [Lena] could visit for a while [Lynn] likes taking her son [Thomas] to school.
('Clarence', 'Lena')
[Clarence] asked his mother [Lynn] to read to him. [Lynn] was too busy. [Lynn] likes taking her son [Thomas] to school. [Thomas] was glad his aunt [Lena] could visit for a while
[{('Clarence', 'aunt', 'Lena'): [('Clarence', 'mother', 'Lynn'), ('Lynn', 'sister', 'Lena')]}, {('Lynn', 'sister', 'Lena'): [('Lynn', 'son', 'Thomas'), ('Thomas', 'aunt', 'Lena')]}]
['mother', 'son', 'aunt']