[Cindy] bought a new video game for her son [Leonard]. [Wilhelmina] and her mother [Cindy] had a coffee date, and [Wilhelmina]'s sister [Anna] showed up in the middle of it.
('Leonard', 'Anna')
[Cindy] bought a new video game for her son [Leonard]. [Wilhelmina] and her mother [Cindy] had a coffee date, and [Wilhelmina]'s sister [Anna] showed up in the middle of it.
[{('Leonard', 'sister', 'Anna'): [('Leonard', 'mother', 'Cindy'), ('Cindy', 'daughter', 'Anna')]}, {('Cindy', 'daughter', 'Anna'): [('Cindy', 'daughter', 'Wilhelmina'), ('Wilhelmina', 'sister', 'Anna')]}]
['mother', 'daughter', 'sister']