[Amy] loves to make cookies for her son. His name is [Dennis]. [George] ran over to see his uncle [Dennis].
('Amy', 'George')
[Amy] loves to make cookies for her son. His name is [Dennis]. [George] ran over to see his uncle [Dennis].
[{('Amy', 'brother', 'George'): [('Amy', 'son', 'Dennis'), ('Dennis', 'uncle', 'George')]}]
['son', 'uncle']