[Clarence] gave his granddaughter [April] a golden chain. [April]'s brother [John] was shocked.
('Clarence', 'John')
[Clarence] gave his granddaughter [April] a golden chain. [April]'s brother [John] was shocked.
[{('Clarence', 'grandson', 'John'): [('Clarence', 'granddaughter', 'April'), ('April', 'brother', 'John')]}]
['granddaughter', 'brother']