[Nicholas] was so proud that his daughter, [Jennifer], made straight A's. He called his father, [Clarence], right away to tell him the good news.
('Jennifer', 'Clarence')
[Nicholas] was so proud that his daughter, [Jennifer], made straight A's. He called his father, [Clarence], right away to tell him the good news.
[{('Jennifer', 'grandfather', 'Clarence'): [('Jennifer', 'father', 'Nicholas'), ('Nicholas', 'father', 'Clarence')]}]
['father', 'father']