[Amy] was sad she would n't be able to spend Christmas with her daughter, [Emily]. [Emily] had to stay home to care for her brother, [Milton].
('Milton', 'Amy')
[Amy] was sad she would n't be able to spend Christmas with her daughter, [Emily]. [Emily] had to stay home to care for her brother, [Milton].
[{('Milton', 'mother', 'Amy'): [('Milton', 'sister', 'Emily'), ('Emily', 'mother', 'Amy')]}]
['sister', 'mother']