[Frances] took her daughter [David] to school during the cold winter morning. [Charles] ca n't stand his unfriendly aunt [David]. [Wesley] decided to take his son, [Charles], on a ski vacation.
('Wesley', 'Frances')
[Wesley] decided to take his son, [Charles], on a ski vacation. [Charles] ca n't stand his unfriendly aunt [David]. [Frances] took her daughter [David] to school during the cold winter morning.
[{('Wesley', 'mother', 'Frances'): [('Wesley', 'sister', 'David'), ('David', 'mother', 'Frances')]}, {('Wesley', 'sister', 'David'): [('Wesley', 'son', 'Charles'), ('Charles', 'aunt', 'David')]}]
['son', 'aunt', 'mother']