[Mary] went to see her gradduaghter [Rosalee]'s school play. Later, [Rosalee] played with her brother [Arthur].
('Mary', 'Arthur')
[Mary] went to see her gradduaghter [Rosalee]'s school play. Later, [Rosalee] played with her brother [Arthur].
[{('Mary', 'grandson', 'Arthur'): [('Mary', 'granddaughter', 'Rosalee'), ('Rosalee', 'brother', 'Arthur')]}]