[Glen] was excited for his father, [Nicholas], to see him perform in the school play. [Nicholas]'s sister, [Lillian], also wanted to see [Glen] perform.
('Glen', 'Lillian')
[Glen] was excited for his father, [Nicholas], to see him perform in the school play. [Nicholas]'s sister, [Lillian], also wanted to see [Glen] perform.
[{('Glen', 'aunt', 'Lillian'): [('Glen', 'father', 'Nicholas'), ('Nicholas', 'sister', 'Lillian')]}]
['father', 'sister']