[Jeff] and his mother [Nancy] went to the animal shelter to adopt a cat. [Lorraine] does n't like having to babysit her younger brother, [Jeff].
('Lorraine', 'Nancy')
[Lorraine] does n't like having to babysit her younger brother, [Jeff]. [Jeff] and his mother [Nancy] went to the animal shelter to adopt a cat.
[{('Lorraine', 'mother', 'Nancy'): [('Lorraine', 'brother', 'Jeff'), ('Jeff', 'mother', 'Nancy')]}]
['brother', 'mother']