[Richard] went to his grandmother [Frances]'s house for the summer. He had a wonderful time there. [Wayne] went to the baseball game with his brother [Richard]. [Cindy]'s biggest accomplishment is raising her son [Wayne].
('Cindy', 'Frances')
[Cindy]'s biggest accomplishment is raising her son [Wayne]. [Wayne] went to the baseball game with his brother [Richard]. [Richard] went to his grandmother [Frances]'s house for the summer. He had a wonderful time there.
[{('Cindy', 'mother', 'Frances'): [('Cindy', 'son', 'Wayne'), ('Wayne', 'grandmother', 'Frances')]}, {('Wayne', 'grandmother', 'Frances'): [('Wayne', 'brother', 'Richard'), ('Richard', 'grandmother', 'Frances')]}]
['son', 'brother', 'grandmother']