[Nicholas]'s father, [Clarence], bought him some ice cream. [Emily] met her dad, [Nicholas], for the first time when he returned from deployment.
('Emily', 'Clarence')
[Emily] met her dad, [Nicholas], for the first time when he returned from deployment. [Nicholas]'s father, [Clarence], bought him some ice cream.
[{('Emily', 'grandfather', 'Clarence'): [('Emily', 'father', 'Nicholas'), ('Nicholas', 'father', 'Clarence')]}]
['father', 'father']