[Cindy] wants her nephew, [Bobby] to come visit her at the beach. [David] took her son [Bobby] to the park for the afternoon. [Cindy] read her son [Wayne] a bedtime story every night.
('David', 'Wayne')
[David] took her son [Bobby] to the park for the afternoon. [Cindy] wants her nephew, [Bobby] to come visit her at the beach. [Cindy] read her son [Wayne] a bedtime story every night.
[{('David', 'nephew', 'Wayne'): [('David', 'sister', 'Cindy'), ('Cindy', 'son', 'Wayne')]}, {('David', 'sister', 'Cindy'): [('David', 'son', 'Bobby'), ('Bobby', 'aunt', 'Cindy')]}]
['son', 'aunt', 'son']