[Travis] and his sister [June] stood in line at the fair. [Travis] plays piano so good that his grandfather [Clarence] gifted him a new set this winter.
('June', 'Clarence')
[Travis] and his sister [June] stood in line at the fair. [Travis] plays piano so good that his grandfather [Clarence] gifted him a new set this winter.
[{('June', 'grandfather', 'Clarence'): [('June', 'brother', 'Travis'), ('Travis', 'grandfather', 'Clarence')]}]
['brother', 'grandfather']