[Hugh]'s son [Michael] and other son [Brandon] took [Brandon]'s grandmother, [Frances], to get some pizza.
('Frances', 'Michael')
[Hugh]'s son [Michael] and other son [Brandon] took [Brandon]'s grandmother, [Frances], to get some pizza.
[{('Frances', 'grandson', 'Michael'): [('Frances', 'grandson', 'Brandon'), ('Brandon', 'brother', 'Michael')]}, {('Brandon', 'brother', 'Michael'): [('Brandon', 'father', 'Hugh'), ('Hugh', 'son', 'Michael')]}]
['grandson', 'father', 'son']