[Belva] take care of her grandmother [Ashley] [Nicolas]'s sister, [Belva], bought movie tickets at a discount rate.
('Nicolas', 'Ashley')
[Nicolas]'s sister, [Belva], bought movie tickets at a discount rate. [Belva] take care of her grandmother [Ashley]
[{('Nicolas', 'grandmother', 'Ashley'): [('Nicolas', 'sister', 'Belva'), ('Belva', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']