[Travis] took his brother [Tony] and his grandmother [Ashley] on a long winter trip.
('Ashley', 'Tony')
[Travis] took his brother [Tony] and his grandmother [Ashley] on a long winter trip.
[{('Ashley', 'grandson', 'Tony'): [('Ashley', 'grandson', 'Travis'), ('Travis', 'brother', 'Tony')]}]
['grandson', 'brother']