[Mary] does n't like her brother [Glen]. [Ashley] is taking her grandson [Glen] out for ice cream.
('Mary', 'Ashley')
[Mary] does n't like her brother [Glen]. [Ashley] is taking her grandson [Glen] out for ice cream.
[{('Mary', 'grandmother', 'Ashley'): [('Mary', 'brother', 'Glen'), ('Glen', 'grandmother', 'Ashley')]}]
['brother', 'grandmother']