[Clarence] wants to take his son [Nicholas] shopping. [Milton] is looking forward to his special dinner with his dad [Nicholas].
('Milton', 'Clarence')
[Clarence] wants to take his son [Nicholas] shopping. [Milton] is looking forward to his special dinner with his dad [Nicholas].
[{('Milton', 'grandfather', 'Clarence'): [('Milton', 'father', 'Nicholas'), ('Nicholas', 'father', 'Clarence')]}]
['father', 'father']