[Theresa]'s son [Travis] and daughter [June] went to get ice cream today.
('June', 'Travis')
[Theresa]'s son [Travis] and daughter [June] went to get ice cream today.
[{('June', 'brother', 'Travis'): [('June', 'mother', 'Theresa'), ('Theresa', 'son', 'Travis')]}]
['mother', 'son']