[Michael] took his sister [Emily] to the movies with him to see the new Star Wars film. [Emily]'s grandmother [Ashley] baked cookies for her after she came home from school.
('Michael', 'Ashley')
[Michael] took his sister [Emily] to the movies with him to see the new Star Wars film. [Emily]'s grandmother [Ashley] baked cookies for her after she came home from school.
[{('Michael', 'grandmother', 'Ashley'): [('Michael', 'sister', 'Emily'), ('Emily', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']