[Lois] went to the party with her brother [Ernest] and her sister [Stephanie].
('Stephanie', 'Ernest')
[Lois] went to the party with her brother [Ernest] and her sister [Stephanie].
[{('Stephanie', 'brother', 'Ernest'): [('Stephanie', 'sister', 'Lois'), ('Lois', 'brother', 'Ernest')]}]