[George] was delighted to watch his son [Douglas] steal third base in the Championship baseball game. [Nancy] is the lovely aunt of [Douglas]
('George', 'Nancy')
[George] was delighted to watch his son [Douglas] steal third base in the Championship baseball game. [Nancy] is the lovely aunt of [Douglas]
[{('George', 'sister', 'Nancy'): [('George', 'son', 'Douglas'), ('Douglas', 'aunt', 'Nancy')]}]
['son', 'aunt']