[Richard] bought his wife, [Wilhelmina], a new necklace. [Cindy] fixed her husband [Francisco] spaghetti and a salad for dinner for his birthday because it is his favorite food. [Francisco] decided to take his son, [Richard], on a ski vacation.
('Cindy', 'Wilhelmina')
[Cindy] fixed her husband [Francisco] spaghetti and a salad for dinner for his birthday because it is his favorite food. [Francisco] decided to take his son, [Richard], on a ski vacation. [Richard] bought his wife, [Wilhelmina], a new necklace.
[{('Cindy', 'daughter-in-law', 'Wilhelmina'): [('Cindy', 'son', 'Richard'), ('Richard', 'wife', 'Wilhelmina')]}, {('Cindy', 'son', 'Richard'): [('Cindy', 'husband', 'Francisco'), ('Francisco', 'son', 'Richard')]}]
['husband', 'son', 'wife']