[Nancy] took her son [Kevin] to the mall to shop for school clothes. [Nancy] took her daughter [Lorraine] to see her very first ballet performance.
('Lorraine', 'Kevin')
[Nancy] took her daughter [Lorraine] to see her very first ballet performance. [Nancy] took her son [Kevin] to the mall to shop for school clothes.
[{('Lorraine', 'brother', 'Kevin'): [('Lorraine', 'mother', 'Nancy'), ('Nancy', 'son', 'Kevin')]}]
['mother', 'son']