[Hugh]'s son [Brandon] and son [Johnson] took a trip to Mt. Rushmore with [Johnson]'s sister, [Vanetta].
('Vanetta', 'Brandon')
[Hugh]'s son [Brandon] and son [Johnson] took a trip to Mt. Rushmore with [Johnson]'s sister, [Vanetta].
[{('Vanetta', 'brother', 'Brandon'): [('Vanetta', 'father', 'Hugh'), ('Hugh', 'son', 'Brandon')]}, {('Vanetta', 'father', 'Hugh'): [('Vanetta', 'brother', 'Johnson'), ('Johnson', 'father', 'Hugh')]}]
['brother', 'father', 'son']