[Ashley] took her daughter, [Nancy], to lunch. [Dale] and his sister [Nancy] love to play video games.
('Dale', 'Ashley')
[Dale] and his sister [Nancy] love to play video games. [Ashley] took her daughter, [Nancy], to lunch.
[{('Dale', 'mother', 'Ashley'): [('Dale', 'sister', 'Nancy'), ('Nancy', 'mother', 'Ashley')]}]
['sister', 'mother']