[George]'s sister, [Amy], bought movie tickets at a discount rate. [Emily] and her mother [Amy] went to volunteer at the homeless shelter last weekend.
('George', 'Emily')
[George]'s sister, [Amy], bought movie tickets at a discount rate. [Emily] and her mother [Amy] went to volunteer at the homeless shelter last weekend.
[{('George', 'niece', 'Emily'): [('George', 'sister', 'Amy'), ('Amy', 'daughter', 'Emily')]}]
['sister', 'daughter']