[Jacob] played catch with his son [Michael]. Later, he went out to eat with his own father, [Roy]
('Michael', 'Roy')
[Jacob] played catch with his son [Michael]. Later, he went out to eat with his own father, [Roy]
[{('Michael', 'grandfather', 'Roy'): [('Michael', 'father', 'Jacob'), ('Jacob', 'father', 'Roy')]}]