[Herman] waited patiently on his mother [Mary]. When she did n't show up he called her daughter [Constance] for help.
('Herman', 'Constance')
[Herman] waited patiently on his mother [Mary]. When she did n't show up he called her daughter [Constance] for help.
[{('Herman', 'sister', 'Constance'): [('Herman', 'mother', 'Mary'), ('Mary', 'daughter', 'Constance')]}]