[Nancy] and her daughter [Lorraine] went out to dinner. [Clarence] taught his granddaughter, [Lorraine], how to fish.
('Nancy', 'Clarence')
[Nancy] and her daughter [Lorraine] went out to dinner. [Clarence] taught his granddaughter, [Lorraine], how to fish.
[{('Nancy', 'father', 'Clarence'): [('Nancy', 'daughter', 'Lorraine'), ('Lorraine', 'grandfather', 'Clarence')]}]
['daughter', 'grandfather']