[James] played catch with his dad, [Dale] [Ashley] took her son [Dale] to the football game.
('Ashley', 'James')
[Ashley] took her son [Dale] to the football game. [James] played catch with his dad, [Dale]
[{('Ashley', 'grandson', 'James'): [('Ashley', 'son', 'Dale'), ('Dale', 'son', 'James')]}]
['son', 'son']