[Travis]'s father [Dale] is going to coach the team this year. [Ashley] takes her son [Dale] to the park every Saturday.
('Ashley', 'Travis')
[Ashley] takes her son [Dale] to the park every Saturday. [Travis]'s father [Dale] is going to coach the team this year.
[{('Ashley', 'grandson', 'Travis'): [('Ashley', 'son', 'Dale'), ('Dale', 'son', 'Travis')]}]
['son', 'son']