[Theresa] had to pick her son [Travis] up from school because the schools' bus was broke down. [Travis] and his sister [June] stood in line at the fair.
('June', 'Theresa')
[Travis] and his sister [June] stood in line at the fair. [Theresa] had to pick her son [Travis] up from school because the schools' bus was broke down.
[{('June', 'mother', 'Theresa'): [('June', 'brother', 'Travis'), ('Travis', 'mother', 'Theresa')]}]
['brother', 'mother']