[Clarence] and his wife [Ashley] played tennis this morning. [Ashley]'s grandson [Milton] watched in amusement.
('Clarence', 'Milton')
[Clarence] and his wife [Ashley] played tennis this morning. [Ashley]'s grandson [Milton] watched in amusement.
[{('Clarence', 'grandson', 'Milton'): [('Clarence', 'wife', 'Ashley'), ('Ashley', 'grandson', 'Milton')]}]
['wife', 'grandson']