[Jeff] and his mother [Nancy] are waiting for [Nancy]'s husband [Wayne] to get home from work.
('Wayne', 'Jeff')
[Jeff] and his mother [Nancy] are waiting for [Nancy]'s husband [Wayne] to get home from work.
[{('Wayne', 'son', 'Jeff'): [('Wayne', 'wife', 'Nancy'), ('Nancy', 'son', 'Jeff')]}]
['wife', 'son']