[Ashley] received a wonderful hand-written letter from her grandson [Travis]. [Travis]'s sister, [Charlotte], was too lazy to send one though.
('Charlotte', 'Ashley')
[Ashley] received a wonderful hand-written letter from her grandson [Travis]. [Travis]'s sister, [Charlotte], was too lazy to send one though.
[{('Charlotte', 'grandmother', 'Ashley'): [('Charlotte', 'brother', 'Travis'), ('Travis', 'grandmother', 'Ashley')]}]
['brother', 'grandmother']