[Nancy]'s husband, [Wayne], needed help painting so he asked his son, [Kevin], to help.
('Nancy', 'Kevin')
[Nancy]'s husband, [Wayne], needed help painting so he asked his son, [Kevin], to help.
[{('Nancy', 'son', 'Kevin'): [('Nancy', 'husband', 'Wayne'), ('Wayne', 'son', 'Kevin')]}]
['husband', 'son']