[Wilhelmina] was n't sure what to buy her brother [Pete] for his birthday. She decided to ask her mother, [Cindy], for some advice. [Natasha] and her husband [Pete] went to New York for the holidays, and had a great time there.
('Natasha', 'Cindy')
[Natasha] and her husband [Pete] went to New York for the holidays, and had a great time there. [Wilhelmina] was n't sure what to buy her brother [Pete] for his birthday. She decided to ask her mother, [Cindy], for some advice.
[{('Natasha', 'mother-in-law', 'Cindy'): [('Natasha', 'husband', 'Pete'), ('Pete', 'mother', 'Cindy')]}, {('Pete', 'mother', 'Cindy'): [('Pete', 'sister', 'Wilhelmina'), ('Wilhelmina', 'mother', 'Cindy')]}]
['husband', 'sister', 'mother']