[Richard]'s sister, [Anna], waited for her mom, [Cindy], at work. [Wilhelmina], [Richard]'s wife, worked there, too.
('Cindy', 'Wilhelmina')
[Richard]'s sister, [Anna], waited for her mom, [Cindy], at work. [Wilhelmina], [Richard]'s wife, worked there, too.
[{('Cindy', 'daughter-in-law', 'Wilhelmina'): [('Cindy', 'son', 'Richard'), ('Richard', 'wife', 'Wilhelmina')]}, {('Cindy', 'son', 'Richard'): [('Cindy', 'daughter', 'Anna'), ('Anna', 'brother', 'Richard')]}]
['daughter', 'brother', 'wife']