[Milton] is going to the arcade with his sister, [Jennifer]. [Jennifer] was pleased to receive a birthday card from her grandmother, [Ashley].
('Milton', 'Ashley')
[Milton] is going to the arcade with his sister, [Jennifer]. [Jennifer] was pleased to receive a birthday card from her grandmother, [Ashley].
[{('Milton', 'grandmother', 'Ashley'): [('Milton', 'sister', 'Jennifer'), ('Jennifer', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']