[Nancy] and her daughter [Linda] went out to dinner. [Linda]'s grandfather [Clarence] was n't feeling well after eating at the restaurant.
('Nancy', 'Clarence')
[Nancy] and her daughter [Linda] went out to dinner. [Linda]'s grandfather [Clarence] was n't feeling well after eating at the restaurant.
[{('Nancy', 'father', 'Clarence'): [('Nancy', 'daughter', 'Linda'), ('Linda', 'grandfather', 'Clarence')]}]
['daughter', 'grandfather']