[Constance] loves to make cookies for her son. His name is [Thomas]. [Thomas] went to a piano concert with his aunt [Lois].
('Constance', 'Lois')
[Constance] loves to make cookies for her son. His name is [Thomas]. [Thomas] went to a piano concert with his aunt [Lois].
[{('Constance', 'sister', 'Lois'): [('Constance', 'son', 'Thomas'), ('Thomas', 'aunt', 'Lois')]}]