[Nicholas] cares about his son, [Michael]. [Emily] loves her father, [Nicholas].
('Michael', 'Emily')
[Nicholas] cares about his son, [Michael]. [Emily] loves her father, [Nicholas].
[{('Michael', 'sister', 'Emily'): [('Michael', 'father', 'Nicholas'), ('Nicholas', 'daughter', 'Emily')]}]
['father', 'daughter']