[Frances] could n't pick up her son [Hugh] at the airport. She decided to ask her daughter [Cindy] to do it. [Gloria] asked her father [Hugh] if she could spend the night with a friend and he said okay.
('Cindy', 'Gloria')
[Frances] could n't pick up her son [Hugh] at the airport. She decided to ask her daughter [Cindy] to do it. [Gloria] asked her father [Hugh] if she could spend the night with a friend and he said okay.
[{('Cindy', 'niece', 'Gloria'): [('Cindy', 'brother', 'Hugh'), ('Hugh', 'daughter', 'Gloria')]}, {('Cindy', 'brother', 'Hugh'): [('Cindy', 'mother', 'Frances'), ('Frances', 'son', 'Hugh')]}]
['mother', 'son', 'daughter']