[Clarence] and his wife [Ashley] went to a lovely anniversary dinner. [Robert] went his grandfather [Clarence] to the park to look for birds.
('Ashley', 'Robert')
[Clarence] and his wife [Ashley] went to a lovely anniversary dinner. [Robert] went his grandfather [Clarence] to the park to look for birds.
[{('Ashley', 'grandson', 'Robert'): [('Ashley', 'husband', 'Clarence'), ('Clarence', 'grandson', 'Robert')]}]
['husband', 'grandson']