[Cindy]'s son, [Wayne], was busy with school activities and forgot to meet his sister. [James] and his wife [Frances] are picking up [James]'s son [Cindy] from her first day of school.
('Frances', 'Wayne')
[James] and his wife [Frances] are picking up [James]'s son [Cindy] from her first day of school. [Cindy]'s son, [Wayne], was busy with school activities and forgot to meet his sister.
[{('Frances', 'grandson', 'Wayne'): [('Frances', 'husband', 'James'), ('James', 'grandson', 'Wayne')]}, {('James', 'grandson', 'Wayne'): [('James', 'daughter', 'Cindy'), ('Cindy', 'son', 'Wayne')]}]
['husband', 'daughter', 'son']