[Hugh] went to the park with his father, [James]. [Natasha] took her mother, [Cindy], out for lunch. [Hugh] and her sister [Cindy] decided to take a trip to Mexico together.
('Natasha', 'James')
[Natasha] took her mother, [Cindy], out for lunch. [Hugh] and her sister [Cindy] decided to take a trip to Mexico together. [Hugh] went to the park with his father, [James].
[{('Natasha', 'grandfather', 'James'): [('Natasha', 'mother', 'Cindy'), ('Cindy', 'father', 'James')]}, {('Cindy', 'father', 'James'): [('Cindy', 'brother', 'Hugh'), ('Hugh', 'father', 'James')]}]
['mother', 'brother', 'father']