[Clarence] bought his grandson [Douglas] a toy train. [Clarence] bought his wife [Ashley] a new phone for her birthday. She loved it.
('Ashley', 'Douglas')
[Clarence] bought his wife [Ashley] a new phone for her birthday. She loved it. [Clarence] bought his grandson [Douglas] a toy train.
[{('Ashley', 'grandson', 'Douglas'): [('Ashley', 'husband', 'Clarence'), ('Clarence', 'grandson', 'Douglas')]}]
['husband', 'grandson']