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