[Clarence] took his granddaughter [Janet] to the park on Saturday. [Janet]'s brother [Timothy] was busy playing football.
('Clarence', 'Timothy')
[Clarence] took his granddaughter [Janet] to the park on Saturday. [Janet]'s brother [Timothy] was busy playing football.
[{('Clarence', 'grandson', 'Timothy'): [('Clarence', 'granddaughter', 'Janet'), ('Janet', 'brother', 'Timothy')]}]
['granddaughter', 'brother']