[Ashley] is [Travis]'s grandmother [Theresa] takes her son [Travis] to the park every Saturday.
('Theresa', 'Ashley')
[Theresa] takes her son [Travis] to the park every Saturday. [Ashley] is [Travis]'s grandmother
[{('Theresa', 'mother', 'Ashley'): [('Theresa', 'son', 'Travis'), ('Travis', 'grandmother', 'Ashley')]}]
['son', 'grandmother']