[David] was excited to see her son [Brandon] meet her father [James] for the first time. She had wanted to bring her other son [Michael] along, but he was sick at home with the flu.
('Michael', 'James')
[David] was excited to see her son [Brandon] meet her father [James] for the first time. She had wanted to bring her other son [Michael] along, but he was sick at home with the flu.
[{('Michael', 'grandfather', 'James'): [('Michael', 'brother', 'Brandon'), ('Brandon', 'grandfather', 'James')]}, {('Brandon', 'grandfather', 'James'): [('Brandon', 'mother', 'David'), ('David', 'father', 'James')]}]
['brother', 'mother', 'father']