[April] took her younger sister [Andrea] to the carnival last weekend. [April] called her grandmother [Ashley] on the phone. She just wanted to know how [Ashley] was doing.
('Andrea', 'Ashley')
[April] took her younger sister [Andrea] to the carnival last weekend. [April] called her grandmother [Ashley] on the phone. She just wanted to know how [Ashley] was doing.
[{('Andrea', 'grandmother', 'Ashley'): [('Andrea', 'sister', 'April'), ('April', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']