[Rosetta] invited her sister [Belva] and her grandmother [Ashley] to her baby shower.
('Belva', 'Ashley')
[Rosetta] invited her sister [Belva] and her grandmother [Ashley] to her baby shower.
[{('Belva', 'grandmother', 'Ashley'): [('Belva', 'sister', 'Rosetta'), ('Rosetta', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']